To update - I've been using it a lot in the bad weather. It's still a bit loud when you land on it (I could do with a thicker mat I think to dampen the noise), and at higher speeds after a lot of use, it started to slip quite a lot so I became unhappy with it, I then read the manual 
The slippage was easily solved by a few allen key turns to tighten the belt, and also I added a bit of silicone lubricant under the belt - now it works perfectly. The only negatives I've found is that it is only in metric, and the HRM is useless (a - because you have to hold it, which while running is silly and b - because when you do hold it it shows around 75 regardless!). Saying that I use my Garmin HRM anyway.
Overall very happy with it after 4 months of use, only had it up to 18kph as there's a patio windo behind me (ouch!) and no issues with the power.
I've only ever been on a big gym one before so can't compare it to other home ones.