Yes, I´m a watchman, mainly because I used this build for lvling and it suits me greatly. Transcendence is nice tool, but the centering is not often available after knockback and I´m using zen quite often, burn crits help a lot and the self heal (even the little that it does) is a life saver when you get into 2v1 situation (often problem of melee classes).
I use transcendence though, but mainly to help my team touchdown in huttball.
I removed the Focused pusuit telent from my build, It is not worth 2 points for me and my usage of centering.
Edit: Addition.
I´m not telling that I feel weak in PvP or something like that, just that the Marauder/Sentinel lack the CC type of skills (stun, KB etc.) which will greatly help this class to stay effective against ranged "KB equipped" classes. If you consider the amount of skills a Sent/mara must use to be able to take someone down in comparison with other classes, altering of some existing skills (adding KB/make the blade storm stun in PvP also etc), or just one of the skills to more control in combat will be great.