Hello, I am also the owner of a mobiky genius. I have been using it to go to work now for a year and a couple of months. I have been riding it 8 kms per day and now that I have moved that has increased to 18 kms. In the way to work I stick it in the train and ride 5 kms. In the way back I ride all the way home 13kms right thru the middle of Madrid, Spain, using the main arterial roads. I must say I enjoy it very much. However, let me share with you some of the defects and modifications I had to make to this bike. As it has been mentioned here, the mud guards are not good enough. I realized that the first day of rain. I modified those thanks to the ideas of cyqlist. Likewise I added not a tail light but a big reflector using his idea of mounting a tail light. I did add a tail light but it was in a more conventional way, when doing that I added 1 cm of height to the folded seat tube but that to me is acceptable. Anyway the biggest issue, was the middle dual sprocket that connects the two chains, I haven't heard of anyone having problems with that in any forum, but in my bike, that part was made of aluminum and after 500kms it just had to be replaced. The problem is that being made of that material it is not strong enough, as long as the protective coating is there it is okay, the moment it gets worn out then the material can not take the pressure and the inner teeth bend out of shape. To me 500 km is just too little, so I found out some guy who owns a machine shop and asked him to make the same exact part out of steel. He did and I replaced the part. I haven't had any problems since. Anyway, in case that it might be useful to anyone (the same way that cyqlist posts were useful to me) I have posted a bunch of pictures with comments in flickr.com:

http://www.flickr.com/photos/40116561@N07

enjoy!