Shabbes Services on Cassette or CD

[frosenfeld <frosenfeld...>]

Can someone comment on and perhaps compare the following recordings:

Sholom Katz - Friday Night Service (Does this include Kabbalath Shabbat?)
              Sabbath Morning Service (How "complete" is this?)

Abraham Davis - Complete Friday Night Service (with Kabbalath Shabbat?)
                Complete Sabbath Morning Service

Chadash Media - How to Pray Kabbalat Shabbat (Is that it, just that?)
                How to Pray Shachrit-Musaf Shabbat)

Which can be best recommended for instructional purposes?
What are the musical qualities of the two Katz recordings?

Replies by e-mail are welcome (though others in the newsgroup might perhaps 
benefit from the discussion).

With thanks, === SR