My last one was 7.5% which is right at the top end of the "Good" level. I've been between 7 and 7.5 for as long as I can remember...
I do worry sometimes that I should be a bit lower (I've been diabetic for 32 years now and, barring a miracle cure, hope to have it for much more than that again!) BUT I know i couldn't get much lower without hypoing all of the time.
I think the most useful bit of the new NICE guidelines is the individual targets. There are always going to be things that we can't change that affect levels, whether that be "Monthly Hell" (which I'm thankful I don't have to deal with!) or having a 17 month old that takes up all of your time (something that I wouldn't change for the world) or a job where you have unpanned / no notice bouts of exersion.
I'm a firm believer that a diabetics life shouldn't be totally about diabetes, yes it's important to try as hard as you can, and yes a HBA1C of 6.5 with no hypos would be brillaint but we're only here once and there's so much more to life than blood sugar readings.
I'm firmly of the belief that whilst you can't let diabetes run your life you do have to hold it's hand constantly and take it with you. There is so much more to life but I'd like to stick around long enough to see it and to enjoy it. The odds are firmly stacked against us in all sorts of directions so control what you can as best you can!