The base was a bit tricky to put together, and had to use pliers to tighten the corners after it was assembled, but I love it.  My birds are very happy with all the space this cage provides them.  (a pair of budgies)   The doors are very easy to open and latch, but too heavy for my little birds to unhook for escape.  I do think a larger bird could probably quite easily open the front access door though.