C-370 experiences?

[utzoo!decvax!ittvax!swatt]

Does anyone have, or know someone who has, experience with AT&T's
C compiler for IBM 370-type machines running MVS?  Need to know
about:

	Compatibility with UNIX C
	Code generation quality
	Runtime library quality (especially I/O routines)
	Reliability (correct code, no obscure runtime explosions)
	Documentation quality (error messages explained?)

This is being considered for projects where extensive UNIX
experience cannot be assumed.

Reply to:
	UUCP:
	[decvax!]ittvax!swatt
		or
	[decvax!]ittvax!big

	ARPA:
	decvax!ittvax!swatt at berkeley 
		or 
	decvax!ittvax!big at berkeley