Which brands are good these days, which are bad?
My booster has fluid in it and my reservoir is half empty (or half full, the back half is empty and the front half is full).
Is the genuine Mercedes part worth $350? Are kits still available?

I would never pay $350 for any m.c. unless it's made out of solid gold. I'm looking for one also and see prices range from $40-120. Might just go with the $40 one it's a beck-arnley closeout. Pelican has an Ate o.e m. for $86 that seems like a good deal.