I'm a current CP and went random, and I do not recommend it. I thought that a lot of people wouldn't pick their roommates either, so I would have a good chance of getting good people. I ended up getting placed in a 6 person apartment with 5 foreigners who were already there a week when I got there. When i first moved in we had one girl from Italy, one from Germany, one from Botswana, one from South Africa, and my roommate was from Norway. My roommate ended up moving out my second week, and the girl from Germany asked to move in. Now she and I get along great, it's actually worked out really well, but the rest of them I don't like too much.
The girl from South Africa is a very hostile person and is just rude in general, also she put the AC on 100 (!!!) in the middle of August, and when we talked to her just kept putting it on 80 or 90 so that i would wake up in the middle of the night sweating. I've had issues with them taking up all the space in the fridge and then taking my stuff out completely, and just in general lots of issues.
The thing is they haven't really done anything I can complain to them about, and for me to move out I would have to go through roommate remediation first, which would not work out very well for me.
To be fair, i know people who picked their roommates and hated them, and those who went random and loved them. I work at MK so I usually get back late at night, so I don't interact with them too much. I was lucky to be placed in an awesome location where I've made amazing friends, so the only time I really notice my roommates is when I'm trying to sleep in the morning or on my days off.
That was a lot longer than I planned lol but if you guys have any other questions don't hesitate to ask!