The truth is, if you live in an apartment, it's very hard to not have roaches. You can be the cleanest person on earth and still get them. I doubt the apt people will do anything but spray. Back in the day when we were renting, we would keep getting them. They are disgusting and it's frustrating to try and get rid of them. When we moved to our 1st house we owned, of course, there were roaches hidden in things we brought with us. Luckily we never got an infestation, we had an exterminator come in asap and killed them. They got in appliances. For some reason they like electronics.
I saw an episode of "Dirty Jobs" where they were with an exterminator, and they had to de-roach this horrible horrible house. Hundreds of thousands of them, everywhere- open a drawer and they were all over, stuff like that. Makes your skin crawl!