Insurance companies sometimes use really shocking bodyshops that have really low standards. I would not trust the recommended bodyshop at all and take it to a bodyshop you or a friend knows personally.
Insurance companies dictate really low labour, parts and paint rates which bodyshops have no choice but to accept due to the potential volume of work they will receive from insurance companies. Although bodyshops have to meet strict requirements, that does not necessarily mean they're good.
I would personally take your car to the dealership to ensure the work is up to scratch. But beware, some insurance companies only authorise non-genuine parts to be used which dealers won't do!
You have a legal right to choose where you want your car to be repaired.
I am sorry to hear this happen to you and I hope everything is sorted quickly with minimum hassle and to back to it's original state.