just dont expect massively great customer service etc from bell and the likes.
For example, if your with someone like HIC, brentacre, Chris Knott etc theres 4-5 people in the office, they will be able to sort out any queries quickly and they also know the cars your talking about. You can ask for the person who was dealing with you previously and they will be easily accessible or be happy to call back and give you personal service.
However with bell you can get sent to any number of call centres, or get posted through to the bombay department who think a corrado is a rover.
Having said that, never had any real problems with bell in my two years of being with them, although i never had to go through a claims process. Did mess me about with adding a car to my insurance whilst at the end of the policy though. I moved away from them in the end as they are no good if you have more than a couple of mods, and i have quite a few.