I have owned the S006 twice with almost all the lens, except maybe the 45mm and 180mm
first time S was a very good experience in 2014. I have 30mm 70mm 120mm and a 30-90mm The system works very well and is one of the best ergonomics MF I have ever used. But somehow, I was introduced to Digital backs and Alpa, and I have decided to part with the S to fund my purchase into digital back.
A year later, I have decided to jump back to the S camp since prices now are pretty decent for the body. This is where my view on Leica quality changed significantly. It is pretty poor to be honest.
My bad experience is mainly on the body. I purchased a new body around April this year, it arrived with a huge dead pixel brand new. I called Leica up and they arrange for me to replace a new one from the store I bought it from. During the process, they asked for the serial no. card, and to my horror, the card in the box is not the same in serial with the body, and you can tell it is a mistake as only 1 no. in the middle of the serial is wrong. Leica told me no matter, as this happen a lot (what the hell??) So, I have waited 1 and a half months for my replacement body and upon turning it on, there's another dead pixel on the screen... but it's not visible on the LR through mapping. So I have decided to keep it. On this second order, I have also ordered the Contax adaptor, which came with the well-known 'not recognized lens upon turning on' issue. I have to unmount the adaptor and remount again everytime and prevent it from going into sleep mode. I have just confirm today with a friend who had this issue with the adaptor and he sent it back to Leica for replacement (which work fine now). I guess I have to do the same.
I have 4 S lens this second time around (24 35 70 100) and hope that they might hold up a little better in terms of usage since most lens AF motor failed according to user on forums. The 35mm has a slow reacting aperture, every time I mount it, the first 2~3 shots, aperture will not close down properly and I need to press the DoF preview button a few times to get it going.
Of the 7 items that I have for S, 3 of them has issues from day one... This is a pretty poor rate, and a first for any brand that I have own, though I did have to send my Leaf Credo 80 back to Denmark to have it clean as a piece of dust got under the filter cover (don't know how it get there!).
All I am saying is this, all these problem shouldn't have happened in the first place, they charge premium amount for product that has high fail rate (it's high fail rate, not absolute no., but a rate), and all these customer service, nice as they were, are just them doing their job to keep their customer from walking out on the brand. It's the least they could do, really.