This was worth every penny even though I was a bit disappointed that it could not help with my post natal contraction pains as it is too fiddly to put on when breastfeeding. But nevermind, it saved my life during my journey to the hospital, which took 45 mins and my contractions came every 2 mins half way through. Only ever used the first setting as the higher settings were quite painful. I used it throughout the first stage of labour until I went into the birth pool. I hesitated buying it as you can't use it in the pool, but thought it would be a good back up plan in case I couldn't have a water birth. In the end I was so glad I bought it and was very pleased that it was available at a reasonable price while giving you the most important functions. Usage is quite intuitive, never tried it out beforehand as I went into labour early and had to go through manual between contractions LOL. One tip - if you have to switch it off, you need to reset the level after switching it on again, even if you only want the lowest level. Drove me crazy for a couple of minutes as I did not figure out why it had stopped working properly despite being switched back on!