Got the car back today, took a lot more time than the week in vacation but the weather was stormy so no problem on my side.
The car is not much lower but I think the stance is perfect not to scratch everywhere. The ride is nice and smooth which led me to think the original suspensions were shot (@100000miles, seems normal) so I don't have a very good point of comparison. The car is very planted, a lot less harsh on small bumps, and very predictable.
The brakes on the other side ... everything was changed new calipers, lines, rotors, wheels hubs and calipers supports sanded and repainted... My mechanic advised that the brakes are breaking in, it is right ! They will have to bed in to give a good feedback. Now the attack is weak but he said a few hundred miles and it will be good, better than stock. I think the rotors looks quite cool with the grooves.
My mechanic will send me pictures of the conversion soon.