In terms of expectations, the WAW is fabulous, the rugged beauty lf the land, the small pubs, the villages, its all fantastic, highlights for me:
Skellig Ring Co Kerry,
Vaughans pub in Liscannor,
Achill,
Don't expect any off road/green lane type activities though.. there are no public access tracks in Ireland comparable to UK Green lanes. Just because it doesn't have a sign, doesn't mean its not considered private property. People can get very defensive about that here. There is the odd beach you can drive on, but that's about it.