kijiji Downgrade Ads In Ontario, anyone use them?

On kijiji inOntario I was able to find 3 seperate ads for people offering downgrade services. One in missisauga I am assuming was a fly by night from back in November as they do not reply to any emails about their add. And two in Ottawa I am giving a couple of days befor passing judgement (one even lists a phone number). If anyone has used any of them please share, sorry I can't post links as I am not up to my post # requirement, but a search of kijiji with PS3 Downgrade will find them.