Absolutely! Few things are more satisfying (jobwise that is, before my wife complains....) than being able to integrate a wide range of aircraft, from heavy commercial traffic through military fast jets, to light aircraft and even the odd hot air balloon. The main problem comes with doing all the above with minimal delays for everyone. Airline crews will complain if they perceive that they're being delayed by a VFR recreational or training flight, but PPLs paying £100 per hour won't be chuffed at watching airliner after airliner departing ahead of them at busy airports. Get it right and it's great. (So I'm told....)
I'd take issue with the suggestion that you expect no surprises from IFR....I'd say most ATCOs have been very surprised at least once by a big aeroplane doing something bizarre!