I've been to Pizza Express on Verulam Road many times in the last few years. It seemed the right thing to do. I put up with that nagging feeling that the pizzas get smaller and the prices just get bigger. They do, or did, a really good pizza, in a reasonable atmosphere.
I had passed this recently renovated restaurant several times before I experienced it. To be honest, it looked a bit sterile outside and I assumed it would feel a bit like a class room inside!