Intuitive, the Insight isn't - but there again they are all just plastic and a few wires so how could they be! My issues with it are only because it seems slower than the Combo and I feel it just has too many things you can do with it, not available elsewhere (like being able to alter basal rates by the 15 minutes rather than just the hour) that it seems to me 99.9% of individuals wouldn't need. The handset needs recharging preferably every night as it has that new type of rechargeable battery that doesn't re-charge properly if you leave it too long - 2 days is about the maximum length of time you can leave it unless you want to completely kill the battery. OTOH the pump itself which uses an AAA battery - eats them and you have to replace that every fortnight religiously despite the fact the handset tells you the pump battery is still at 100%, if you don't replace it then, you soon get communication errors between the handset and the pump. Having had the Combo first despite the fact that it's bigger - one AA for the pump and 3 AAA for the handset - and the reservoir holds over 3ml of insulin - it's also a lot simpler to use, all in all. Hence for me, the only really positive point to be honest is the fact I don't have to manually refill reservoirs because it uses a 1.4ml pre-filled cartridge - enough for me for 5 days or so hence I don't suppose I need as many tubing changes.
It works perfectly fine for me for what I need and they and we (generally) have discovered all sorts of things about it once it was released into the wild which would have been useful to know before we started and I suppose it's the same with anything new - all the versions of Windows have been tested on the flippin users so why not pumps? However it's a bit different when your life depends on it!
I have a year or so to go before mine needs changing - so we'll have to see what's what by then. At the moment I'd rather have another Combo I think than another Insight - but we'll have to see.