we have a rigipod excelsior and are really pleased with it.
we have one bedroom which is big enough for my husband and son (the husband snores) on campbeds and i sleep in the porch with an inner with the dog (who doesn't snore). We chose the excelsior for its higher roof as we usually camp with some friends all of whom are very tall and our tent is where we end up of an evening. we don't use the groundsheet in the living room bit although we take it in case of a muddy pitch. we have the bedroom and porch at opposite ends so we can open the other two ends for a through draft in hot weather. ours came with a dvd (the first time we put it up was hilarious as it was raining and i had to keep running to the back of the car with the laptop playing the dvd to see what we needed to do next).
i found tying bits of string into eyelets was useful to show which inner went with the porch and which with the other end as we kept getting them mixed up and they are different sizes.
newbs has it dead right about the groundsheet just peg the porch straps the spikes go in the plastic holes at the bottom of the main poles (if you lower the height of the adjustable poles insert them into the holes then raise them up to the middle hole they fit much easier [uks tip not khyam])
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.