£200 for a 60Hz 27" TN panel?
Yeah, definitely NO.
It might have a low input lag, and a fast pixel response time, but as a whole, that's in no way a good deal.
In general, ultra low input lag and ultra fast pixel response times are practically empty features for consoles, as the FPS genre (which is usually the main audience for fast reaction time features) is handicapped by the controllers of the consoles. For Tekken-style fighting games, it might be justifiable. But then comes the question: how professionally competitive are you in that genre? If you're not, then a good IPS panel will give more benefit for you.
And if you're looking at this for computer usage (from your text, I take this is the case?), then you'll definitely be better off with a 120/144Hz monitor for both of the above-mentioned genres. And for general usage, IPS monitor is most likely preferable.
My personal opinion:
If you're going for a TN panel, then there should be no sensible reason to limit yourself at 60Hz. 120/144Hz all the way.
For IPS panel, 60Hz is probably the compromise you'll want to make, as the 120/144Hz tier is QUITE expensive.