I have a slightly skewed view of these pipes, being a pipe maker myself, so I'll tread carefully. Randy Wiley has been making pipes a long time so it's not like he's gonna go out and shoot himself if I say something disagreeable.
This is in my experience, I will not speak outside that.
The good: Super finish quality. Pleasant tasting pipe due to the oil curing process. Draw is fantastic and the button (tooth ridge on the stem) very finely cut.
The bad: Because of how they are machined, the stems are very thick right at the button. Uncomfortably so in my opinion. My pipe smoked pretty well and certainly tasted excellent, but it required a pipe cleaner half way through the smoke so as not to gurgle for the rest of the smoke. None of my other pipes require this. It was also uncommonly heavy due to being uncommonly large.
Wileys are decent pipes but if you are looking for a super thin bit look elsewhere, and if you are looking for a small, light pipe, again, this is not his specialty.
They are not, generally, super expensive pipes, as handmades go. Some of his higher grade pieces go for more, but a couple hundred bucks is the typical price range.