Does anybody commute from Cardiff to Bath?
It would be in an absolute nightmare. At some point in your journey you WILL have to go into Bath City Centre – as all the roads that come of the M4 at Bath go through the City Centre. I live roughly half way between Bristol and Bath. It takes me roughly 4 hours each day to get in and out of Bristol. If I had the choice (and the Internet connection was better) I would NOT go into Bristol or Bath (or any other town) at all.