I bought this to get familiar with 3-D printing without too much risk (paid about $150.00, plus tax and shipping, about 3 years ago).
I didn't even know anything about the different filaments (e.g., PLA, PETG, nylon, carbon fiber reinforced), but it came with some PLA, and I bought some more. That 2nd one hasn't been opened yet and is still sealed in its bag, so I don't even know its moisture content (an important thing the deeper you get into 3-D printing, and the reason people stepping up to bigger and better buy dryers, especially for filaments like PETG and nylon).
It prints well and is a pretty simple unit. The only problem I ever had was, the power switch, which I corrected (Grizzly sent one, but the one I replaced the factory version with was better, so I left "better enough" alone.
All you need to run this is, PLA filament (don't cheap out (but don't go overboard either) and you can get dependable results. Good filament has consistent sizing, so is less prone to clogging the nozzel.
For starting prints, I just use the Elmer's glue sticks, They work great and are inexpensive. I just wash the plate, dry it WELL, apply the glue and go.
You can pull click and print designs from all over the Net, both for practical, entertainment and use. I focused on useful item, like tray-stackers for my dehydrator, center marking jigs, bandsaw throat plates, and so on. Now, I'm ready to move on to a printer that will print using filaments that hold up to ultraviolet, heat and can actually take some stress in use.
PLA filament is okay for things that will not suffer sunlight or be subject to stress (e.g., you're not going to make a jar opener with what you make using this).
I have a partial roll of red PLA on the printer and a new one yet in a bag (I cannot attest to quality because I haven't used it, so buy a roll (around $30.00 for hours and hours of printing fun) from a reputable seller.