Hello, I know there has been discussion regarding Leica repair shops in the USA and I - again - have to share a positive opinion with Mr. Youxin Ye. Recently I accidentally dropped a bag with my Leica in it. Initially, I didn't notice any problem until I tried to take pictures. There was something iffy going on with the lens. I could still take pics but the lens was not working at its 100%. I contacted several Leica recommended technicians including Youxin Ye to see if they are familiar with the problem. Mr. Youxin Ye responded but instead of usual "please send it here and this is the $$ fee just to look at the lens" he provided me with the repair advice. I followed his steps, and now my lens is working like before. And all this for free. Thank you Mr. Ye, again.