Don't know why people are saying it's ground floor. It literally says first floor as the first thing on the list, unless I'm reading a completely different listing to the rest of you?!
You've only been there a couple of years and are already wanting out. That'd make me question what's wrong with it, other than it being a small, awkward shaped, leasehold property.
Is the broadband speed really that poor?
The photos aren't brilliant either, I'm not buying your TV so I don't need it centre front. There's no obvious dining space. I'd be put off by a windowless bathroom too.
It's fairly neutral decor wise, and that's good, but sometimes you can be overly neutral. Get a few homely knick-knacks in there, a bit of greenery and some artwork or soft furnishings. Perhaps take some better photos.
If you fail to get viewings after that, then it's the price.