I did not put five, because there are many specialists there, but I will write only about electrics. A good special electrician, his name is Alexander, helped me and advised me, although he went to many, and he managed to correct the mistake. So you can go to him with this, you have already helped more than one... Learn about the rest, turbines and other things from other people who were repaired there.
In principle, they do everything at once
And diagnostics, and repairs, and spare parts are all in place
But not neatly :the interior was dirty and the oil pipe was not screwed up.
You need to check on the spot