Just remember when you do mediation that you don't have to sign anything or agree to anything that you don't want to. If an agreement is drawn up, have your attorney look it over before you sign it.
Mediation can be a good thing if both parties go into it wanting to resolve issues.
I ended up walking out of the 2nd session after only 30 min. because he constantly yelled at me. My ex was against hs too and probably still is, but I didn't back down in mediation or with the lawyers and it is now written in the divorce decree that I can continue.