Alps Mountaineering are good value for money. Been using one for a few tours.
What ever tent you get, see if you can pitch the fly first, called external pitch. Some tents will allow this with a "footprint", a second floor if you like. This means if it's raining you can pitch the outer, then unpack and set up the inner in the dry. Same goes when packing up. Pull down the inner, pack up your stuff into your bags under shelter and at the last minute drop the outer. I carry ours in two bags, one for the inner and one for the outer.
Other things to look for: Decent ventilation on the fly, either large weather protected vents that can be propped open, or double ended zippers on the vestibule openings, so you can open the top to allow condensation out. If you aren't stealth camping, reflective ropes are good. Lots of internal pockets are good. Side vestibules are good, so you can easily get stuff out of your bags while laying in bed.