This atlas has been accused of jumping the gun by showing most currently (February 2010) under-construction motorways as already open - albeit with a few warning capsules inserted to warn the reader of expected opening dates. Confused? Well, take this example: The M3 Dublin to Kells motorway is shown in this atlas as open to traffic, even though it won't actually be open until June 2010. But the atlas warns you about this in the above-mentioned capsules.
Collins' reasoning for showing the motorways as complete, I presume, is that as a touring atlas, most copies will sell in July and August - by which time the lion's share of Ireland's motorways will indeed have opened. So, all in all, it gets a big thumbs up from this particular reviewer for foresight.
In addition to clearly laid out leaves with attractive colouring and minimal clutter, there are a number of city orientation maps towards the back of the atlas, as well as a list of some sights worth seeing.
Do yourself a favour and get this atlas!