Excellent stick. Ive been playing Street Fighter 3: Third Strike with it largely on PC via a PS2USB convertor for 6 months now and it certainly is a great stick.
The buttons are Hori and the stick is also Hori I believe. Any longterm stick player will likely swap out Hori parts for Sanwa or Seimitsu parts in time its not particularly difficult but the default Hori parts are absolutely fine for the job and I personally like them very much.
Keep in mind that if you plan on getting one of these and swapping the parts you might be better off going for an HRAP2:SA. They are almost identical but the arc of the button layout is slightly more severe the parts are Sanwa usually considered the best by pros they are slightly easier to open up should you want to change parts easy on HRAP 1 but easier on 2! the button layout is also superior for fighting games. The placement of the buttons means that the top buttons go SquareTriangleL2R2 and the bottom buttons are XCircleL1R1 from left to right. This means that the default button layout matches the default ingame controls on most fighting games a particularly nice feature so you wont have to change them.
That however does NOT apply to the HRAP 1 which has an understandable and logical button layout but it does not match most default fighting game controls. Not a remotely big deal and Im sure you can technically switch the wires easily enough so the button inputs are different but its something to consider if you really are bothered.
This has been quite a critical review suggesting superior features of the HRAP2:SA but dont be fooled these criticisms are really only very minor. Its a professional standard stick which is extremely high quality. They are built like tanks and have a solid heavy wellmade feel. They dont look fancy compared with some of the flashy new Fightsticks with stylish artwork on but their bleak appearance sits atop some excellent hardware which is good to go straight out of the box. These are some of the most popular and highest regarded models of arcade sticks in the world and you can be totally sure that with an HRAP 1 the product is the real deal. The differences I mentioned between the HRAP1 and the HRAP2:SA are relatively unimportant unless you cant live without Sanwa buttons immediatelyand whilst I suggest the HRAP2:SA as an excellent alternative youll be missing out on nothing to go for the HRAP1 instead and youll save a bit of money in the process.
Any SF3:3S players out there who are still unsure of how good this stick is it might make you more confident to know that PINOAB7 arguably the worlds greatest Necro player owns and uses an HRAP1 in many tournaments as do many other tournament standard pros.
For the record replacement covers and custom artwork can be put on however its more complicated that slotting a piece of paper under the glassy top cover it realistically has to be done through a website called Arts Hobbies for reasons which I cant be bothered to explain but look it up if you care.