Yes, they are part of Royal and Sun Alliance who trade as MoreThan.
I have two cars insured with MoreThan and have never had any problems - after my one and only claim (many years ago!) I was not penalised in any way as the accident was not my fault.
At renewal the last two years, both premiums have actually reduced - I am paying 7% less than two years ago, so they are playing fair with me.
You could ring MoreThan on their Freephone number (I get through to Liverpool) and ask them to match their echoice quote.