Don't do it. I got loads out of my individual counselling. Helped me see that I take the "blame" for when other people (ie DH) aren't happy about something. I have now, after quite a while, realised that DH (we're separated now!) is controlling/bullying/verbally abusive, and to rather an extreme extent. Once one thing fell into place, everything else crashed around it, and I've got a truly omg, what have I been doing, realisation.
If I'd ever been discussing things in the same space as him, I'd never have got that far - I'd have never had a chance as he'd have talked over me/across me/told me I was wrong etc etc.
He's actually now just had a counselling session for himself - after I told him that the way he interacts with everyone is wrong and I have no intention of getting back with him. However, he has already verbally abused and threatened DS1 behind my back, while he has supposedly realised the errors he's made, gone on anti-depressants and is making a real effort to change. It's all for show, to try to stop me from carrying on with the divorce.
I'm very very sure that, in a few weeks time, once the house is on the market, and divorce well underway, his individual counselling will stop because I'm sure it's only a means to an end. Meantime, I'm already listening to him quoting "therapy speak" at me that he's picked up from his session - in many ways he's going to get more manipulative tools from going than any benefit to him as a person.
Stick with your insticts and avoid doing anything that he could twist/use against you. You need to get yourself totally balanced first. Hope this makes sense x