I've recently sold my apartment in Tenterfields, having lived there since it was built in 1998. I was very happy there and I only moved because with a toddler that was moving beyond toddling onto running around at breakneck speed I needed more space.
The development is a good size in that it's small enough for you to get to know your neighbours and big enough to keep the the management agent busy (the current agent is excellent). There seems to be quite a high level of owner-occupiers, compared to other, larger, developments but recent years have seen the proportion of rented apartments in the building increase.
The location of the scheme is hard to beat, it's about a 5 minute cycle to Stephen's Green and is walkable to both Luas lines. The bus services along Cork street are among the most frequent in the city and each apartment has it's own assigned parking space. There is no designated visitor parking though.
I never experienced any security problems in all of my time there, I did take the usual precautions of not leaving anything valuable sitting in my car and I fitted extra locks to the apartment the day I moved in. That said I understand that there have been some security issues with ground and first floor apartments, particularly on the street side of the building. Apartments facing the courtyard are that bit more secure, along with the south facing aspect that makes that side of the building a bit more desireable (and about £5-10,000 more expensive when they were launched). If you're going to be cycling get a decent lock for your bike, they do tend to vanish, but that's true of anywhere in the city.
If there's anything else you'd like to know, ask away.
By the way, BigM - The Tenters closed it's doors for the last time about a fortnight ago. A sad loss, but Fallon's up the road is pretty decent too.