gold4rs is trusted but their service is very slow.
I bought 100m rsgp a while back and they said they would xfer it to my account within 24 hours... but they did not. I had to argue with them for a good two days due to the fact they said I already got the gp. They said they mixed me up with someone else and then they said sorry and gave me 105m rsgp the next day. The staff on gold4rs can not understand english well, so you must talk a lot to get your point straight.
I've never bought from them so i cant say, but ive heard so many reports on sythe that they hack your accounts and dont give you any money.
try selling to USFINE, havnt heard anything bad from them.
try it for yourself.
If I get my $55 in Tuesday, I will recommend YOU selling your main to it, but not buying gold from them, as they're way too overpriced. If you are planning to buy gold, just buy from Sythe, you'd get double money from them than in gold4rs.