A solid unit, heavy enough to withstand reasonable use. Quite easy to assemble, and to switch between leg press and hack squat configurations is quite straightforward. The only two negative observations I would make are that the handles for the mechanism release could be better, especially in leg press configuration (you actually roll the release mechanism aside, rather than rotate a handle); and that the carriage is a little rough in its movement. The former would be improved with handled attached to the bottom of the release mechanism, the latter may well improve with use as the unit wears in.