We went for an overnight at Caberfae to get our children ready for a trip to Colorado. The resort took a lot of time to make a good base of snow, and then the actual snow came along, and made for a good 2 days of skiing!
We stayed overnight on-site, which I don't really recommend. It was clean, but very old, and worn out.
The tow rope slope was pretty short and small, making it hard for little ones to get any rhythm going before starting over. Lines for the lifts were pretty short for midweek, I never had to wait! Way less crowded than I thought it would be.
the Lodge was pretty nice for warming up and hanging out. They allow you to bring in your own coolers, crockpots, etc. The cafeteria was ok, pricey as they all are.