I recently purchased SH4 (now I have a machine strong enough to run it) and found myself yearning for the good old TypeVII after only 10 minutes playing and felt like a spy aboard an American sub lol.
Within the first half hour I found lots of things I disliked, but on the other hand, SH4 does have many cool features. But I cant shake the feeling that I belong in a U-Boat.
Hopefully the U-Boat Missions addon/expansion will solve this problem to some extent. But I know for a fact I'll be jumping back into SH3 before too long.
I wont uninstall SH4 though, now its all pacthed up and with a few good mods it is a very good simulation but nothing will really ever beat SH3+GWX
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Formerly of U-13, 1st Flot. Back in the days of the WPL and SH2.
Current career : OberLeutnant z. S. Werner Faust of U-707 (Type VIIC) 13th Flot. St. Nazaire.
U-707 Patrol Logs at
http://grimnigel.blogspot.com/