We chose Radiance because we thought it would provide a great holiday for adults and kids alike, without being too kid focussed (we were prepared to put up with our own kids but didn't want too many other kids around!!!). We also knew that being a longer cruise, there wouldn't be as many kids.
Our family suite was fantastic and even though some people say the balcony is too small, it didn't bother us. It was great being near the lifts and only one floor down from the Windjammer and pool deck and two floors down from the Kids' Club. There were a couple of nights where the noise from the Centrum was quite loud (entertainment usually finished by 11) but ear plugs fixed that (and kids didn't seem to notice).
We choose set time dining (6pm) which was great with our kids, who would run off to kids' club afterwards. Also had the same fantastic waiters each night - Sachin and Roshan - who looked after our Coeliac daughter very well.
I loved this 2 bedroom family cabin. Yes, the balcony is small, but when you've got two bedrooms and a big family room, who cares? You still get fresh air and great views. The beds were so comfy and the whole suite was very clean and our attendant was excellent. The suite perks were great. We loved going to the Concierge Lounge and also being able to order from the dining room menu in our room.