It does a good job of keeping my elbows forward during curls. It hurts a bit depending where you place it and is awkward either way. I can't imagine it's any different from any other arm blaster. It's fun, but mostly a novelty.

The Monster Grip Triangle is a lot of fun. It is as advertised and the monster handles really engage the forearm throughout all movements. It is larger in size than a standard triangle grip and may be harder for smaller users. It is also much heavier than most cable attachments.

Most Rogue equipment is over built and, as a product of that, over priced. The equipment is also almost always excellent and made for the long haul. I cannot say there is anything remarkable about the attachment. The weight is nice, it is comfortable to use, the knurling is effective but not too aggressive, and I use the attachment often. It is a beast and can handle heavy training and abuse. You won't go wrong buying it, but there may be a cheaper option of comparable quality.

The Gym Reaper hip thrust pad is great for padding the barbell for hip thrusts. It comes with velcro straps to place on each side of the pad, so as to better secure it to the barbell. I am not sure they are needed, but it is a nice touch. The pad does not move during use and at no time does the bar escape from the pad. This hip thrust pad is seemingly identical to every other one on the market, but for different branding. I imagine these pads are all interchangeable with one another and that there is little, if any, variation between brands. To that end, there is no benefit to buying Gym Reaper or any other specific brand, but rather whichever one is selling the product for the lowest price.

Ab Mat Wise Crack is exactly what it looks like, namely a standard Ab Mat with shorter, padded rectangles extending from the front of the pad to support your butt, but leaving room for your tailbone. The padding is great throughout, softer on the mat where you might apply more weight, and firmer on the butt support, so as to be stable. I primarily use it as a seat for cable rows off the bottom pulley. It permits me to comfortably sit on the floor and gives me a little support. It is also fantastic for sit ups, etc. However, it has been the best seat I've used for a low pulley row and gets a lot of use in the gym.

The Omni bar is BOS' updated cambered multi-grip bar. It weighs 20 lbs, making it easy to move around the gym. The handles have slight angles and by rotating the bar, you can angle your hands slightly inward or outward when pressing. The curvature on the bar is sufficient for a deep stretch when benching. While 20 lbs could make the bar prone to tipping over while loading, I have not had the issue arise (although taking off a plate per side while unloading helps). The metal the handles have somewhat thin, sharp angles that can be somewhat uncomfortable when pressing. These are not deal breakers, but I suspect would not be present with a thicker American bar. I bought the Omni on sale, but it is still a good value at full price. I use it weekly and really like it. Mine came with a typo on it, which gives it extra charm.

The Titan dumbbell holders are perfect. They feel heavy and sturdy, do not wobble or move at all during use, and effectively act as J cups for DBs, permitting you to unrack and rerack while lifting. The space for the wrist to slide in is somewhat narrow and it took me one or two tries to not bump my wrist when reracking. It is now a non-issue. I never kick DBs up to my chest or shoulders anymore and I don't have to worry about dropping them at the end of the set. I am surprised these aren't more common than they are. Very useful for anyone doing heavy DB work.

The Legacy is a fantastic multi-purpose machine. Its primary functions are seated leg extensions, seated leg curls, and laying leg curls. BOS has attachments for preacher curls and they have indicated they intend to create more functionality for the unit. It has excellent range of motion on all three of its primary movements, although it may take a few attempts to determine the best configuration. The machine is very customizable, and the leg pad, lever arm, and seat have many positions to fit most body types. It is comfortable to use and relatively quick and easy to adjust. Having tried the Titan version of this, I can say that this has both a better strength curve and more comfortable padding. It is a tremendous value for the price and has massively improved my leg training. There are a few issues. First, while the strength curves are great, they are only great with the correct weight distribution, which requires trial and error. Absent getting it right, there may be small dead-zones at the top of a laying leg curl and at the bottom of the leg extension. Second, the seat sits somewhat far back, making this machine less than ideal for leaning forward on seated leg curls. A pad behind the back or pulling yourself forward on the machine's handles helps. Third, the knee pad for the seated leg extensions must be fully inserted into a receiving port that sits between the legs. This requires the handles to be inserted and removed for each set of leg curls. This is not the end of the world, but adds an extra step to the set up. Beyond that, the machine has no unique issues that you wouldn't find on any other machine with this design. It was easy to build, BOS has great customer service, and I would buy it again.