Welcome to CoffeeSnobs Jamocha!
Nice toy you have there. There have been a few threads on Boema reco jobs here so have a bit of a search around to see what you can find.
I would expect a big pile of scale in the boiler and similar dirty pipe-work. The best bet is that if you are feeling handy that you pull it to bits and give everything a clean. If your not feeling at all handy the get a pro espresso machine tech to give it a service.
A post of mine from 3 year ago...
and you should checkout...
...and a pile of others!
Its a good machine, Aussie made, good part availability and really great value for money.