I was using an RE20 into a Neve 88M with a Cedar DNS2 on the inserts, in open plan, for speech. I had to make the DNS far too aggressive to cut, in particular, keyboard noise.
Using the DPA 4088, I have been able to back the DNS way off and overall the sound is much better. In a quiet treated room I would still prefer an RE20 but not by that much.
BTW, DPA may not approve, but when you, almost inevitably, put a small kink in the boom, a pair of parallel nylon jawed pliers works well for me.