I have a round one (2 actually!) and I absolutely love it, it creates the perfect mental and physical space for me to meditate and be creative with my practice. I leave one out all the time at home so that I can just jump on it whenever I need a quick stretch and take the other to classes. I got mine from Form because I love their designs (I got the Cosmos one last season and NYC style for Christmas)They are machine washable too which is a real plus after hot yoga!!: www.theform.co.uk I sometimes teach classes too and it's perfect as I can teach from the centre of the room which my clients always love!