My views:
Type II -- Nice boat.
If one economizes fuel on the way out, one has enough for a few high speed dashes. The boat requires a cunning commander. I good boat to wonder if one will have enough fuel to return home.
Type VII -- Excellent boat, has good range, fast-enough diver. Good load of torpedoes; probably the most versatile of sumbies.
Type IX -- Slow to dive. Grrr. But this bus will take you places. On the bridge, you do get the feel of commanding a large ship. I'm on my first career in GWX with a type VIIB. Hoarding renown to get a type IX sumbie ASAP. I like world travel
