That looks like a pretty sweet deal. Never had a 3D printer but the idea has been bouncing around in my head for a few years now.Good find! Also if you are looking at the Ender 5 Pro they have a pre-black Friday deal for $80 off at their site for $302:
If you're planning to print mostly PLA is fairly safe. But ABS does release a good amount of toxic fumes (styrene) not to mention you need an enclosure for best results, I keep mine in the garage (Prusa mini and Ender 3 pro) but I mostly print PLA, PETG, carbon fiber etc.That looks like a pretty sweet deal. Never had a 3D printer but the idea has been bouncing around in my head for a few years now.
Are there any environmental concerns with these things? By that I mean air quality impact. I think I'd set it up in a closet off my bedroom, but not if I'd be breathing in fumes all night