This is a strange question. Being Moslem just defines someone's religious beliefs. If someone had posted a question, asking if Christians are good for the UK, it would seem very odd.
Not all Moslems have fundamental beliefs. I imagine most are like any other person, concerned for their futures, livlihoods, families etc.
As for are they good for the UK, anyone from any background, religious faith, creed or race has the ability to make positive contributions to society.
We have teachers, doctors, nurses, business people and lawyers who follow Islam, so I would say yes Moslems have as much value to the country as anyone else. We have good and bad people from all walks of society. It is very unfair and ignorant to tar everyone with the same brush.