Have you searchd for "Lodz," in these forums? There are a good number of threads where people discuss Lodz.
I've corresponded with admissions at a lot of these schools, including Lodz. Like a lot of these Polish schools, you can do a good amount of rotations in the US; but not your entire two years. I asked specifically if I could do an entire two years of clinical education in the US (like Caribbean schools do), and was told no; there are certain European clinicals not offered here (Intro to Dentistry is one tha comes to mind).
However, don't let that discourace you. Sounds like you will still have plenty of time to do many rotations in the US. As usual, check with admissions first and ask them all your questions; after that, make sure what they are saying syncs up with what people on here tell you so you know the school's not lying to you.
Lodz seems decent, nothing spectacular but nothing too shady, so to speak. However, they use an agent: AIM. This is definitely a negative thing, so if you apply, try to apply directly to the school if that's possible.
DeepRoller is a member here who plans on attending Lodz, I believe, and said he's spoke with graduates from Lodz so he can expound on the process of how easy or difficult it is to get residency here.