Those Hilleberg tents are very well designed, and seemed to be well-made, too. They are pricey, esp the four-season ones. The three-season ones are not much more than most other brands. If you need a 4-season tent, then anything less than really good quality is a dangerous false economy.
In the 3-season tents, the fact that the fly usually doesn't come all the way to the ground has mixed consequences:
1) It will give you better ventilation; and can get too breezy at times, espo if you're not using an inner tent.
2) On the other hand, with a couple of Sierra Designs tents I've used in past years, I got a tent-&-pack tailor to add a few inches of skirt to the bottom part of the fly, 'cos I was getting too much back-splash of water, sand, crud, etc., during heavy rains. (This was bef I Saw The Light & started using tarps.) I'd pull the lengthened fly out & away from the tent at the bottom, almost like fabric eaves, and that solved the back-splash problem, at the cost of slightly reduced ventilation.
Depending on the weather where you use the tent, I'd opt for one with good venting high up in the fly if poss--there's a wee bit more weight involved, but the better condensation control is worth it.
I've had good luck with my MSR Hubba Hubba, but I'm not an evangelist about it; certainly some of the people on Crazyguy who've used the Hubba Hubba have had bad experiences. It's a 3-season tent only, but well-made & generally well-designed. If you can afford one of the lighter weight Hillebergs, say the red 4-season or the yellow 3-season, that might be the route to go. Not sure how widely they're sold in UK & Ireland?
Good luck in any case,
J.
