This is one of the New Tool kits from Airfix, and a joy in the sense that this honourable old brand is making its way back on the market of modern kits. Unfortunately, for Airfix, the modern plastic kit is of much higher quality than it was in their heyday.
The kit has recessed panel lines and has reasonably well surface details, the fit is good and the decals are very good. On the downside it has a cockpit which looks like it is from a kit from the 50's, and on the whole the kit is a bit simple.
For the modeller with a bit of experience I would rather recommend the Italeri Spitfire Mk.IX. It is a bit more complex, have more parts and the fit is not as good, but it is in about the same price range, and offers much better cockpit detail as well as more crispier surface details.
Good fun to build though, the Airfix kit, and well suited for the beginners.