Well sorry if I were Robin, I'd be complaining frankly - unless you can instantly ring the actual experts and get the correct advice pdq whenever it should happen you're stuck and struggling.
GPs and surgery nurses simply do not get the all day every day experience of dealing with solely diabetics, that hospital D clinics do.
I could not possibly manage with my GP surgery alone - no instant grasp of whatever it is that's bothering a diabetic for starters - whilst clinics know it's bloody hard work managing it - which we all magically have to find extra time and effort every single day to fir in with having a life - GPs just do NOT grasp it. It's hard for them to actually grasp the proper self treatment we constantly need to do - and they find it totally unbelievable if we say eg Oh bum, I forgot to bolus for that piece of cake, or I've just taken my basal dose of bolus insulin - will I have to stay up all night and drink Lucozade now? - whereas we all go Oh bugger, been there done that, got the T-shirt. And hospital clinics understand these things too - and are perfectly USED to helping sort them out! - just in a normal day's work.
I was asked if I still wanted my clinic appointments 6 monthly - I said Yes - because frankly I actually like the safety net. You can easily get into terrible habits over a year whereas if someone's prodding you every 6 months, you're less likely to - well, I am, at least!