Turret is solidly mediocre.
I have seen all sorts of grandiose claims about turret like that it staggers Phantoms and it invented the question mark, but really it is just ok for a little mook stagger every now and then. This is also why any investment in turret above Rank 4 is largely wasted.
The truth is located somewhere between the dismissiveness of your first paragraph and the hyperbole of the second. The Turret contributes a steady stream of kills and assists if it's specced for max damage.
It's not like her fitness tree is a better use of points. Even with 3 ranks in Fitness and a Cyclonic II she's got easily enough shields for Gold.
It's not hard to try it for a few games and see.
I seriously don't understand the claymore builds. Almost any other class would be better with a claymore.
This is one of VERY few classes in the game that actually gets a decent boost from power damage. Why not take advantage of that? Why build it exactly like any soldier build when you could make it actually different and interesting?
I was sceptical for a long time, then I watched Deerber's video with Fortack and was struck by the fact that the Claymore matches her power rhythm surprisingly well. Like with an infiltrator, her powers are being used to get the best out of the weapon.
Try it out for a few games and you may like it.
My build: http://kalence.drupa...5!24N53364!09GE
Now take into account that I'm a total scrub who is probably the weakest player on this forum by a long way, and this particular kit is one with which I tend to get my personal best scores.