so far many of the review have be from people who have own the system for personal use . I do not dispute that the system be well suit for that . however for the past year I have see they appear more frequently in hotel gym . the benefit to the hotel of course be that it take up very little space . the problem however be that it just do not hold up well under heavy use . at every hotel where I have find this in use , all of they be damage and therefore unusable beyond a certain weight level . the problem seem to be that the lock key bend . I suspect this be a result of someone incorrectly insert the key and force it through , cause it to warp . once the damage be do , there be no way to correct it short of take it to the machine shop and bend it back into shape or buy a new set of key . so if you be someone who be put in the position of choose something to put in you hotel 's gym , for you customer 's sake , DO NOT choose this device . either get traditional free weight -lrb- no move part therefore nothing to break -rrb- . or get something like a iron master .