Just to try out the dwarf classes i also had m/ch.
But when i switched to ch/m i had so much more fun.
Lots of tooling, CC, great support, nice as of-tank, high survivability, but not a boss burner...
ch/m is not a good dps class.
While the (always on) High-Energy Barrier gets all the love from your tank and healer (and it's also great when soloing, or saving party members)
your role is only a 'O Sh.t savior' when there is a bad trash pull, etc, but those are the moments you really shines
So it probably got no spot in a burn party, but it has in (end game) instances when tactics are involved...
But more important, it's so much fun