Forget it. Not as useful as it sounds from all accounts I've read.
What's worse, the full dyson set will get you killed faster than any other set. The shields aren't that great, but they have these quick little heal processes afterwards. So the end result is it feels like your hemmoraging hull points through full shields -- because you take damage, the shields suck so it goes to your hull, and then the shields bounce back. Instead of having full shields that actually help, you get paper thin shields that heal real fast.
It leaves you vulnerable and you just lose hull points and die with full shields.
Not 100% accurate, but that's the dumbed down version. Practically speaking, the Dyson set sucks.