I am honestly blown away by the quality and use of this machine especially at this price level.
I had the Syedee bicep curl/extension machine - that cost me 225 - but only the seat was adjustable which forced me to use bad form.
This one you can adjust seat, arm pad, and handles perfectly to your liking. And the cable system is SO much better than just the pivot/swivel the Syedee had. And it's almost 100 cheaper. Crazy.
Assembly was straightforward, very clear instructions, but make sure you have a rachet set and wrenches or it'll take a lot longer.
Highly recommend.