I did loads of research on tents...eventually decided a large porch / decent headroom and 2 person (even with just me) was worth the extra weight.
Went for a Vango tornado 200 at over 3kg. I like the headroom,the porch (massive- means that everything even when wet can go in there) I can close the flaps and cook in the porch, have a brew no problem (even sit in there).
However it is a lump and although luxurious I feel I can cope with smaller.
Your choice at 1.2 kg and a 5 minute pitch, decent hydrostatic head for £80 seems a bargain...
I would certainly give it a go..just for the weight / size ..not so much pitching time as you will have all evening to erect your tent (unless its pouring down)