Pros
1) It's a free, fair site where you can program things of your choice.
2) It's an amazing site to just chill, relax, and program with no distraction.
Cons
1) There is an added fee of, let's say, 100 Robux. -- "Assuming a designer wants to upload 10 clothing items a month and having to pay 100 Robux per clothing for the fee, that would be 1,000 Robux. For small designers, that’s way too much if they’re going to have to earn 1,428 Robux in the gross sale (due to Roblox marketplace tax) to even recuperate that fee, and then start earning profit."