The molds are mostly that same as the U-47 I am building (except of course the U-99 doesn't have the funny interior). Assuming the mold quality is the same, you can expect:
- ejector pin marks all over the upper deck (around 45)
- some broken railings
- the "teeth" (wire cutter???) in front may not have been molded properly so you'll have to file it even
Overall, the fit is OK with little warping. You may need to scratchbuild some parts for the deck gun an the AA gun, though.
The plastic is easy to cut and sand. Easy to paint, too.
What are you going to use for the rigging? I haven't made up my mind yet, but I won't need to decide so soon, as this project is taking longer than I thought.