I was worried about buying this because of my size I didn't think it would fit me. I am a size 20 at 5ft 7 so I'm not the smallest, and I just had a baby so I had an extra belly.... On the biggest setting it fitted me fine. I didn't realise how unfit I was until I done this.
It took me a couple of attempts to get it going but once it was going the only thing that stopped it was my lack of fitness. It is definitely worth getting