Garage floor - Paint or Carpet?

Hi Guys, I'm literally in the final stages of completing the studio. I have to say I completed a test the other day and its seems to be working really well. So first I would like to thank Stuart and all others for their help. There is no way I could have done this without this forum. Can I just check something as I have searched here and found mixed reviews. I cant really afford to laminate the garage concrete floor so I'm either going to paint the floor or carpet as I have old carpet from the house. Which is the best option? My third option would be to buy the below which is rubber inter locking floor. http://www.amazon.co.uk/Effect-Interlocking-Flooring-Exercise-Garage/dp/B00JL9L1H2/ref=pd_sim_sbs_kh_1?ie=UTF8&refRID=0VKN8VWT8QPMY7G62PMW Many thanks

Out of the three I would use an epoxy based paint. If you find later on that you are getting interference from the hard surface under a microphone you can always get an area rug to help for that area.