I like this bike a lot. This will make a fine commuter and all purpose bike. Agreed you need a better seat.

If I were going to nitpick, I'd likely change out the rear derailleur as I'm not a big fan of the Huret allvit. I'd hunt around for a suntour rear derailleur. Also I think those brake levers need to move up the handlebars a bit. Lastly a set of alloy wheels would be a big plus.