Since the early '90s, I'd had mostly negative views about Randy Clark, based mainly on the opinions of harsh critics of the "Toronto Blessing" and "Brownsville-Pensacola Revival."
I'd also heard a few negative things about Mike Brown.
I was, therefore, quite surprised to learn that Craig Keener, a widely-respected NT scholar, is close friends with both Clark and Brown. Out of curiosity, I picked up a book by Clark and two by Brown -- ones that Keener either endorsed or contributed to in some way.
The book by Clark is Baptized in the Spirit. It is "ok." It has some useful info about how Spirit-baptism is understood in various traditions. OTOH, it lacks exegesis of the relevant passages, and I find Clark's terminology choices frustrating.
The books by Brown are Authentic Fire and Playing with Holy Fire. The former is a rebuttal to J-Mac's overwrought and ill-informed "Strange Fire" polemics, while the latter is a rebuke and warning to the Pentecostal and Charismatic community as a whole for some of our excesses. They're pretty good.