Does anyone have one of these? Do you love it? How does it stack up to an iPad?

I broke my iPad screen (and plan to DIY fix it) but it looks like I'll need a new laptop/tablet anyway since I'm going back to school! I've been reading reviews and it looks like the Galaxy Tab Pro offers multiple window mode, which sounds really, really attractive (especially since it's priced the same as an iPad Air). But is it buggy? Does it lag?

I'd appreciate any and all replies. Thanks!