Hi all! Just joining the forum as I'm trying to find others with a HP2S. Mine was ordered 12:th of November, built in February and i got it around the 20:th of March. It was the first one in Scandinavia. I've driven +2000km so far and it surely is a marvelous bike!
Maybe you think that 130Bhp is not a lot, but I can assure you that 110Nm of torque at 3000rpm is a lot!!! The tremendous torque along with the Öhlins and the Telelever will make you pass any Bayliss-wannabee on the outside this summer!!!
Anyway, the mystery with the ECU upgrade, when the quickshift stoped working...
I had the same problem and it also started to work after a while. Apparently after a software upgrade you'll need to drive the bike at least 5 seconds on each gear so the ECU will "learn" where the gears are. After that it will work properly.
About valve adjustment, The HP2S has a different valve system than the rest of the Boxer family. (No shit??)
When building the HP2S the project team sat down with BMW's M department and asked them about any ideas to make a good bike.
Well, after a lot of Weissbier and napkin scribbling they came up with a simular concept as there is on the K1200 models. This in turn means that you probably won't need to adjust the valves until after 30000km like on the K-series.
The service cost is indeed the same as for a regular R1200S, actually about £10 cheaper... BUT... The oil was expensive as it is the same oil used in BMW M5 and M3, so the total cost was more expensive than R1200S.
Hope this brings some light on the topic!
Best regards to you all!

/ J