What's THIS For...! was released in June 1981 by record label E.G. It reached No. 42 in the UK Albums Chart.
One single was released from the album, a double A-side 7" of "Follow the Leaders" and "Tension". The 10" version included "Follow the Leaders (Dub)". It reached No. 55 on the UK singles chart in May 1981.
A remastered version with three bonus tracks was released in 2005.
What's THIS For...! was generally well-received by critics. Trouser Press described the album as "nearly as terrific" as their debut album, "bringing funk to ambient music, implying feeling sublimated in a chaotic world."