i've been waiting to write a review until ive put in some work with my USA 90s. now that i have, i have to say that i love my powerblocks! The handles have nice knurling, glad they upgraded from rubber as the default! swapping weights is easy and fast and can be done anywhere in contrast to other adjustables where you have to go back to the base that holds the weights youre not using. weights are sturdy, compact and not a problem when needed for two hand, 1 dumbbell exercises. instead of a triangle grip, you will hold the dumbbell by the crossmembers that are diagonally from eachother. i am looking forward to grabbing the dumbbell stand and straight bar next!