My reply has to do with tents in general.
First, I do not know the answer to your first question, for I do not own this particular tent, sorry. I can only say the evil rain sometime forces you to break the tent down in it -- sad but true.
Second, regarding condensation -- I have not had a tent yet which, in certain conditions, did not accumulate some condensation. It's really based on weather conditions in general, and how vented your tent is, and how many people are inside the tent itself. I have a 20-year old North Face Bull Frog, and it has from time to time had condensation build up on the inside fly, but it never condensed enough to drip on to and through the tent itself (but did have a few drop fall on to the tent, but did not seep through on to me). I do however spray waterproofing on to my tent itself, and it helps without question.
Third, my 20-year old North Face tent floor is still as water-proof as the day I bought it! No treatment necessary. ALWAYS USE A GROUND CLOTH, i.e., "foot print" to protect the floor of your tent. ALWAYS INVEST IN THE FOOT PRINT -- TO NOT IS BEING PENNY-WISE AND POUND-FOOLISH.
One last helpful hint: For the BEST SEAM SEALER, USE A PRODUCT CALLED "SEAM-GRIP", IT IS THE BEST, AND ALL ELSE IS JUNK. Take it from a veteran camper, I have used everything, and seam-grip is the only thing that really works. (Zoom in on the pic to the left and take a look. It is not the cheapest, but then again you get what you pay for.