Anyone ever run Speedmaster Heads on their small blocks

How about starting with whether the heads as delivered are for example: usable as is, acceptable, adequate, a good start, good bang for the buck out of the box, obviously show the faults that can't be overlooked, etc but then get into mods that can be done, should be done, what needs fixed etc for higher performance up to what some of you more experienced guys are going to do with them. Not everyone is going to go for the best of everything, a maximum build here. Some are gonna want to check em over, or perhaps have them checked over and hopefully just slap them on an engine. So maybe cover it all? For guys that want assurance that theyre good as is, or unusable ootb, and options beyond.