First of all I do really like the NordicTrack R105, it is a great design, comfortable (I have a back problem) to ride and if it worked properly the built in iFit Live would be great. Now the problems, first of all iFit does not work properly with the R105 and they have been trying to fix this for the past 6 months. Workouts can still be recorded with the data manually and the Live programs do run but again they have to be manually entered online after completion of the workout. I first started using my R105 in March, at the beginning of July a terrible knocking sound started and I had to go through the scenario of recording the sound and sending it to the support services at ICON. The support services were very good but it took 2 weeks to resolve and eventually I received a replacement unit. After 2 weeks with the replacement unit another knocking sound was heard which I was able to identify this time as being play in the crank. Once again I duly reported the problem and sent a recording of the sound to ICON. This time they had the parts to repair the unit and an engineer called about 2 weeks after reporting the problem. Unfortunately he did not have the correct parts and another 12 day wait ensued until his next visit. He returned with a couple of bearings for the crank shaft and a new shaft but no new circlips. It turned out that the shaft sent was the wrong one and he eventually tried packing out the bearings with a special sealant. There was still play in the shaft and he twisted an existing circlip to give a spring washer effect to eliminate the play in the crank. This has cured the knocking sound but!!!! what happens if the circlip fails, back to square one. I think I should have asked for another replacement unit but I am happy for now as it is running good and only time will tell.