I guess you have to weigh up the pros and cons. When I went to uni, I was extremely anxious about staying in halls and found it quite tricky to socialise with people. However, after the whole experience, although it was hard at times, it gave me a complete new set of social skills and really prepared me for the real world of work (where you will have to socialise with people, and some people can be especially difficult!).
Anyway, here's some pros and cons.
Pros: 1) You know your boyfriend, you obviously get along. Moving in together is a big step which could strengthen your relationship and make you closer as a couple. 2) You won't be woken up in the middle of the night by loud flatmates/hallmates, or fire alarms (happened in my halls twice a week). 3) You will probably save money living together from buying groceries together, splitting bills, and both be thoughtful of switching off lights/appliances to save costs. 4) You'll have your own space, which means friends or family from home can come visit and stay with you.
Cons: 1) Missing out on making friends in halls, missing out on hall parties, could be a little bit isolating (I don't think I would have made anywhere near as many friends if I had moved in with my boyfriend). 2) Friends/classmates aren't nearby for help with coursework (or for a quick gossip). 3) If you and your boyfriend break up, it could be very awkward (hopefully won't happen, but you can never predict these things!). 4) Halls are expensive, but moving into a new flat can be pricey as well. Need to buy lots of new gear such as bed linen, kitchen appliances, TV, clothes horse, storages (sounds little but it adds up!).
To sum: I think it depends on you. I know you say that you're not bothered with going out, and don't want people to be loud/drunk/disruptive, but halls is an experience, and it's one that I am so glad I had. However, I would never repeat it. It really is a once only type of thing. You will get woken up by noisy drunks or people setting off the fire alarm, but it gives you something to talk about with friends. It all makes life more interesting, though it can be annoying. You'll live with people who will light up your day, make you laugh, and change you as a person. You'll also meet people who are absolute lunatics, but once you learn how to deal with these people and recognise their type, you'll know how to avoid them in future.
It's all life skills. Skills that will come in very important later in life.