440 stealth heads.

I realize that with many aftermarket parts things change over the course of time. Has anyone purchased a pair of stealth heads lately? And if so, what was the OOTB condition?

A general "they suck, buy trick flows" doesn't really tell me much. If you had problems, what needed correcting? This is basically going to be a replacement head for a stockish build. It doesn't warrant $2,000+ heads, nor do I have much interest in dumping money into the stock heads. Thanks