pros and cons to both i say
living a lone is nice - you can have things how you want all the time don't have to worry about any ones mess or yours for that matter.
The solitude is nice as well.
But it can get lonely. Roomates are good for that - if they are cool - that is the key finding good roomies, ones that have the same interets, and know you can trust them, if you have that, then roomies can be great! resouceful, shared bills, shared chores, more friends
I think it comes down to is who you chose to live with, random strangers from the paper - are not always the best thing.
You have to be very careful who you let into your home, and usually the fewer the rommates the better i find. or ya it is just to much shit to deal with