When I used my tomtom rider I used the address that I was after, I went from Dublin, Waterford, Cork, then over to Galway and back to dublin and didn't have a problem finding the hotels I'd booked. The only thing I found a problem was when set for winding roads, they're more like single lane roads.
Sounds virtually a carbon copy of last years Ireland Tour Tom. One of our party riding a BMW GS used his TomTom Rider to navigate but I struggled with my Car based Tom Tom and gave up so just followed him. Would like to get the hang of it so I'm not restricted to dawdling behind a BMW rider all week!
I enjoyed mate, got wet a few times but you expect that over there. Only saw 1 cop in a week. I also downloaded a few relevent P.O.I's from the tomtom website, like pubs
I laughed at the winding roads feature on your tomtom, I don't think we had the romans here in Ireland. So all our roads are winding. It has been know to rain here alright, and post codes are on the way in 2015. The only country in Europe without one, Our postal system is very clever.