Here is my experience... I ordered successfully from SB one time, in January, for 100g. Then at the end of February, I ordered again, FE, Germany to North America, 150g, with tracking. Three days later he marked shipped. I waited patiently for over three weeks, and then tried to contact him. Then Evo happened. Couldn't get ahold of SB for a week or so while Agora was fucking up.. When I finally spoke to him he said he was very busy and to contact him again in a week. I waited a week, contacted him again, now he says his evo tracking numbers are lost, and says he will give me a "deal" on some more, pretty much the same price I was paying on my original missing order.
Tracking never provided, totally fucked by mister Stealth Bomber. Not saying it'll happen to you. But that's what happened to me. hope you all have better luck.
I have the spontaneous idea of an anonymous vendor rating system that is fully independent of the markets (and possibly publicly viewable on clearnet, just like DNStats). Everyone+grandma rates 5/5 on the markets anyway just because their order was shipped. Not a good benchmark of vendor quality, honesty or reliability.