Im biased cos I live in the area and find it great...very handy location and I find it very quiet. P'boro and Cabra shops closeby (good bakeries, butchers, etc) and town is an easy 20 min walk. Good bus links, though i never bother using them as its easier to walk most places. Nice streets and houses - the exact same as u find in more fashionable places in D6 and D4 but obviously far cheaper.
Any downsides? Lots of rental still about (esp on Cabra Park) - not noisy or troublesome in my experience but u get some unloved houses that dont do the streetscape any favours. Shopping centre is brutal (Tesco must be one of the worst I've come across) and everything has been on hold for the redevelopment. It will deffo be redeveloped once things pick up - the holdup was due to ongoing litigation. With a revamped shopping centre should come coffee shops/more places to eat (which are needed) and a more pleasant atmosphere in the village itself.
Dalymount isnt a problem IMHO- it may be hard to park when matches are there but thats only once a week after 7pm for a few months of the year.
PM if you have specific questions.