Kronplatz is a great family friendly resort with many long runs. All the lifts are modern - which makes the long ascends quick & comfortable, and leaves plenty of time for the exceptionally long slopes on the way down.
The slopes are extremely well maintained and lots of options from beginners to advanced. However, there are few off-piste options.
Some of my favorite hotels in the world are near the resort - lots of great options as low as <EUR 100 p.p./night including half board. Apre Ski is good, but generally I would class this more as a family friendly resort, and less party vibe in the ski towns.
From Kronplatz, it's also a short bus right over to the Sella Ronda, opening a wealth of additional slopes. It's a great challenge for a day to ski Kronplatz, do Sella Ronda, and then return to Kronplatz on time before lifts close. I failed last time after getting seduced by an amazing Pizza at a slope-side restaurant. Good thing there's busses back :)