Bruno,
We (my partner and I) very much like the way which whenever you have a problem
with the turbine you have a relationship with the manufacture, you can call him even with a small issue...
With JC in Germany it is almost impossible, with the others we only had to make the phone call to get in touch
with the manufacture.
Again, this is based on our experience which is for now not so good with JC Germany,
and again, maybe other have much better experience with them.

Avi