Great purchase if you want a mid-range exercise bike that is well built and stable so you are not wobbling around if you decide to push yourself when exercising. Easy to put together (approx 30 minutes), smooth operation, with an excellent range of functions and programmes to suit all fitness levels. The DKN AM3i is probably as close as you will get to a gym machine without paying silly prices. I have given this a 5 star rating despite the bike having a fault with the pulse senor when delivered, in fact the service offered by Sweatband.com in dealing with the fault, made the purchase even more impressive. The bike was ordered on Tuesday, delivered on Wednesday, the fault was reported by email on the Friday and by the following Tuesday a new set of handlebars arrived which rectified the fault. This Bike is excellent value for money and the service provided by Sweatband could not be better.