Liverpool is Cool.
Liverpool seems to offer quite a bit, I was only there for a couple of days. I spent most of my time relatively close to the train station area near Liverpool Lime Street, the Albert Dock and waterfront. I imagine there's loads more to see, but those areas were quite cool with architecture and history, plus museums and of course all the shopping you can handle, if you're into that.
Insider Tip:Near the main shopping area they set up market's daily with fresh fruits and vegetables. Great way to find a healthy snack in your travels!