I've been using this company for many years, and everywhere I go I take them with me. As a renter I have -- so far -- always had the option of the property owner taking care of pest control, and I've always declined their offer and put up my own money to keep Pitbull around. It is money well spent.
They've handled everything from roaches to ants to scorpions. They're punctual, they are communicative, they are extraordinarily friendly, the technicians are helpful and knowledgable, and the owner is an all-around great guy that cares deeply about his customers and their satisfaction with his business. They also have online bill pay, which is super convenient.
I will continue using Pitbull until I don't have that option anymore.
(Edit: My original review said I'd been using them for "a couple of years". That sounded wrong to me, so I double checked. Sure enough, I've been using them since at least 2010! Time flies!)