Its pretty capable in terms of adding products, structuring product categories/ groupings, deleting products, setting up catalogues, doing searches, offering special pricing etc.
The suggestion to play around for a while on a local instance is a good one.
Hard part is setting up the payment links - these are mostly US card based. Theres been some discussion of UK card links, but I'm not sure how far it got. None I know of for AU, NZ.
There may be a Paypal link out there somewhere, but I haven't come across it.
