A good place to start when 3D printing for halo props/costumes is to have a look through our
"What's Your Printer?" thread. You can see what other folks are printing with right now and some of the pros and cons about their printers.
It may also be worth having a gander through the "
"I wish I knew" Tips When Starting to 3d Print" thread as well to see what people may have to say about certain features on printers and their usefulness to printing props and such.
Beyond that, it's certainly not a bad idea to look at some reviews on YouTube and make sure it's reliable, see how the print quality is, find out what features the printer has, etc.
From what I can tell this printer seems to have everything you would need; it has a nice user interface, filament runout sensor, and auto-bed level. I will let you know that if you're considering making helmets or armour pieces, a 220x220 bed will feel very small. I have a CR-10 that I bought 5 years ago, and it has a bed size of 300x300. Even with the additional 8cm, most helmets can not be printed in one piece, and most props I make must be split into pieces for printing as well. If you're buying the printed solely for making large cosplay items like props and armour, I suggest looking into getting something with a larger build area.