I have the V2 brolly and love it for it's ease of use. Have had no problems whatsoever with it's build quality.
My only complaint, (well it's not really a complaint), is it's lack of height. It is a bit low, and I never fail to catch my bonce on it when getting in and out, but I've been prepared to put up with it for the sake of it's other benefits. The other dimensions are great, it's nice and wide so I can get plenty in, and deep enough to push my bed chair right to the back and keep out of the worst of the weather.
But I'm sorely tempted to swap out to the new 100T. It's not a bad price at all, bearing in mind the benefits of the extra height, and in particular the two rear vents as standard. I looked at having a couple of vents put in my V2 by Army Andy, and the cost would work out more than a new 100T taking the purchase price into account.
I've checked the other dimensions and it's the same width as the V2, and 5cm deeper, so I wouldn't be losing out anything at all. It's a win/win as far as I am concerned.
I'm watching carefully, and may well pull the trigger on the new one.