Mine gets hot enough for my liking (pretty hot)... and I haven't noticed the water temperature go lukewarm.
I think this is a design issue more than anything, but does anyone have a problem with water from the bathroom sink splashing everywhere on the counter?? Either the sink is not large enough or the faucet is too tall. Not sure that I can complain about this but it's pretty annoying.
Also, since I've moved in, I've notice some thin cracks in the drywall, particularly at the corners of windows and door frames. Not sure if I just didn't notice these when I first got my keys or if they appeared later on, but make sure you guys pay attention to that as well!