I'm so new the paint's still wet

Haven't even got the motorhome yet (being prep'd at Stowmarket Caravans). I'm buying a Miller State Arizona 2006.  Don't really know much about them but I had a look around it and it certainly looks exactly what we want.  I'm interested to know of anyone's experience with this model and what are the essentials for motorhome owners (realise I need to get a generator and have been pointed towards say a Kipor 1000/2000). Probably too many question and as many answers in return, but any I advice would be most welcome.  Looking forward to travelling this wonderful country of ours and exploring those parts which I really should have been to by now!