Since I got my 236 from The Zigmeister's full movement service I've been running chrono most of the time. When I need to time something i just reset and start over, otherwise it's my centre seconds. The power reserve is fine, though I haven't taken it off the wrist for more than 30-36 hours (with chrono stopped), just have to give my beloved honpo 29B some wrist time too
I can tell you the watch even feels different after the movement service - no more freespinning rotor, it's quieter, the pushers click sound and feel is better, and overall just feels more composed.