COMMERCIAL EMACS INFORMATION/EXPERIENCE WANTED

[William Howell]

We are interested in purchasing a commercially developed and supported
version of the famous EMACS editor.  We know of two commercial versions 
and are trying to decide between the UniPress Software, Inc. version of 
the EMACS editor and the Computer Corporation of America (CCA) version 
of the EMACS editor.

I would appreciate it if you would send me by MAIL any thoughts or
experiences you have with either or both of these versions.  Are there
any other commercial versions available?  We will be running them in a
UNIX 4.2 environment and are concerned about performance of the
editor.  How solid is the code?  How responsive are the vendors to bug
reports?  What is the quality of the documentation?

Thanks in advance.  If there is sufficent response I will summarize
and post to the network.