I'd say #1 if you can. I probably couldn't. I didn't see earlier if you knew when the last service was done. If more than 5 years I'd think an overhaul would be a good idea.I don't know about Joma. If they offer a two year warranty and cover seals, I don't see a problem. Of course if you went to sell it, buyers will pay more for an OEM service IMHO.