Wonderful to hear from you again Killie; 'been wondering how you were. Now about that tent tipi... to answer the OP (seems long ago and far away), I have not been in said tent. I have, however, lived in a traditional (canvas) tipi for a few years, in the Adirondacks, both with a stove and an open fire (not at the same time!). Have also had a lightweight backpacking tipi tent from Seek Outside.
I was puzzled trying to figure out what the TentTipis is, until I found it as the Nordic Tipi. I looked long and longingly at those a couple years ago, to use as a little retreat from the house. Haven't gotten one yet, but it may still happen! Let me be the first to say, I think your choice is excellent! I was also going to suggest maybe going for a smaller version than you started with, and I see you have. Good move.
I think you'll find the tent worth every penny, and with an ambience that isn't found in any rectangular alternatives. The fabric will perform better than the lightweight nylons for you, and have a better feel (take note that the Kifaru's and Seek Outsides are superb for when weight and packability are necessary; however condensation can indeed be an issue with them).
As far and being costly, I'm a believer in getting the right "thing", and being satisfied with how it performs, than trying to cut cost and gambling on suitability... Sometimes it costs more than we'd like (well, OK, it USUALLY costs more than we'd like), but better to feel content and confident than to wish you'd gotten the right thing at the start.
Enjoy!