It's only the third tent I've owned and neither of the other two cost anything like as much, so I've not alot to compare it with. I have been very impressed with it, goes up quick and easy, loads of usable space, never a problem with condensation, solid and little flapping in wind, everything I want from a tent.
One thing not often considered about mats is sitting on them, rather than sleeping. If you're one of the unfortunate individuals like me who find sitting on the ground with no back support for any length of time uncomfortable then something that fits into a simple chair kit can be a huge boon to overall camp comfort.
For the weight weenies Big Agnes do a chair kit that weight 6oz (170g?)
Big Agnes also do a range of insulated mats, not imported into the UK for patent reasons (acording to the distributor) but readily available from the US. I got mine last year through Ebay and have been very impressed, cost around £50 with shipping and customs, though the exchange rate is less favourable now.