As an HRAP 3 owner myself, I can tell you that it is a very GOOD stick. No arguement there. The base of the stick is metal plating, so is the face panel, and the sides are made of this very solid, hard-feeling matte material that doesn’t echo when you knock on it so it feels like it’s built like a rock. Very sturdy and resembles an arcade panel.
A thing to note though, is that if you’re not used to square-gates and ball-tops, the HRAP 3 might take a little getting used to.
In regards to buttons, I’ve played about a month with my HRAP 3 using stock Hori buttons and they are perfectly fine if you’re the casual gamer. However, if you’re already willing to shell out the money to get an HRAP 3, you may as well go the extra mile and grab yourself a set of Sanwas / Seimitsus (Whichever suits you) to maximize your stick’s potential. The buttons all use quick-disconnects on the HRAP 3 and the tutorials in SRK should be able to fill in the details on how to switch them up. Alternatively, as someone else here suggested, you can also grab the HRAP 3: SA which comes with Sanwa parts by default to save yourself the trouble.
But regardless of whether or not you intend to mod it, using the HRAP 3 is never a bad choice. If you’re into fighters or are looking to get into fighters, this stick will serve you well. I know it has for me.
Hope this helps!