To be safe get it p.a.t tested at that sort of age.
Regards Rob
You wouldnt belive the things i've seen pass a PAT test in the past

. I agree that fitting the hose gets easier with practice, its not hard, but when you are doing domestic cleaning and by that i mean you've been sent in to clean the house and not wet-clean the carpets, the hose is on, then its off, then its on, then its off, you may just as well pile the furniture to the middle and do the hose cleaning with a powerful cylinder before using the kirby on the in-fill. Joe you are spot on about it missing the edges. I also dont like the way the head pulls off the floor on the reverse stroke.
Richard if you buy this cleaner see how you get on with it before you spend money on a Kirby service. The only part of the motor that is likley to fail is the fan, there will be little else they can do to it in spite of what they may or may not say. If it is working well now then i doubt a service will do much to it. see how you get on first.