I have 3 Acer AL1917's. They are awesome, but I do have a problem with every one of them. They will sometimes hang at the logo when turning them on. The only way to reset them is to unplug them. Gets annoying, so I hooked up all 3 to a surge protector of their own, that way they all can be turned on and off with 1 switch, I don't have the problem anymore. I'm not sure if I just managed to get all 3 of my defective, or the model in general does this. I haven't tried anymore Acer models.
Even saying this, Acer will get my business again even with he flaw I found in the product I have.