Oh yeah, there are a lot of very positive points.

I used to live with roommates for several year in college, and then flatmates for the rest of my scholarship (so I had my own room at this point, but still shared the rest of the flat).

Positive points of living alone: * You can get up and go to bed whenever you want (based on your schedule), no one to make lots of noise when you want to go to bed early, or to complain if you want to play CSGO on your computer the whole night (this applies more to roommates than flatmates).
* You don't have to deal with other people's gross habits. People who can't properly clean a pan after they've used it, and you end up cleaning everything twice when you want to cook. People who just don't do the dishes, or who don't clean the kitchen, or bathroom when it's their turn to do so.
* You don't have to wait to use the shower, toilets, or kitchen because someone else is taking their time in there.
* I like to be left alone, so even with flatmates, it is so annoying when people knock at your door for the most useless request ever (I've had such flatmates, literally knocking at my door and talking to me to tell me about something that happened in class. Just leave me alone if the flat is not on fire).
* You don't have to deal with random people showing up, and spending time at your flat, because they're your flatmate's friends, especially when you want quiet, and want to be left alone.
* You can obviously rub the one-eyed snake whenever you want without being afraid that someone will just barge in and be another victim of these caught compilation videos.
* You don't have to be as quiet when you come back at 5 AM completely pissed from a party. (Still have to be quiet for the neighbours).
* You can have all the privacy you want if you invite someone over (friends or bf/gf) and not having to work out when you flatmates will be gone, and how much privacy you're going to get on this day or that day. * You don't have anyone sucking up all the bandwidth because they're downloading that last episode of GoT or a full season of another show, and you're lagging as hell, just trying to play online.

Negative points of living alone: * Being completely alone for a long period of time can be hard, and having no social interaction for a long time is not really good, so you should make sure you still have people you can meet up with, and/or play online with (not the same, but you still get some kind of interaction).
* I'm sometimes afraid that if something happens to me, like falling in the shower, having a seizure or something, people won't find me in time, because I really have no contact with my neighbours. That's why you should still have people you regularly check in with, and make sure your close friends and family (if that applies) know where you live, and are in contact with you.
* It's easier to let things get dirty when no one else is coming to your place, because you're the only one living here, so it's not like it's going to bother someone else. You need to be serious about it, and maintain your place as clean as possible.
* Rent usually is more expensive when you live alone, so you'll need to factor that in.

I'd still rather live alone, just because of the freedom you get to do anything you want, whenever you want, and not being annoyed by people rambling on because they're bored, or they have something stressful on their mind. The isolation would be the only worry, because it does get lonely if you don't get much online interaction, and only go out to do the groceries and to go to work (especially when you don't like your coworkers). It's worse for some people, and some other deal with loneliness way better, but I don't think that's a situation you can stay in your whole life.