Belleayre is an old-timey family ski resort that looks like it hasn't been updated since the 60's. If you are a skier, and can go on a day when all the trails are open, and you dig the retro look, it's probably a fun place. If you're a snowboarder, not so much.
A lot of the trails (especially connectors) are quite narrow, so I did a lot of falling-down-on-purpose to avoid hitting little kids. Some of these trails were built with steep drop-offs on the sides, and no fences, ropes, or little evergreens to save you from plummeting to your doom.
However, my biggest problem was the lifts: they all (even the new quad) have very narrow platforms on both ends, so it's quite difficult to skate your board into position at the bottom, and very easy to crash into your fellow lift riders at the top. Adding to the challenge, the top of the lifts has a steep downhill and a very short "landing" area. I saw a TON of pile-ups, mostly (but not all) involving snowboarders. What made it extra not-special was the ski lift attendants with megaphones barking at said roadkills to pick themselves up and get out of the way. I really didn't feel the love from Belleayre.
As for the conditions: only about half the trails were open when I went (12/30) so it was pretty crowded. I found only one trail that was enjoyable, a nice, wide blue with decent granular snow cover. Some of the closed trails look like they would have been fun on a better day. The black trails were all icy.
Be aware that the advertised vertical includes the Discovery area at the bottom, which is a handful of the most ridiculously flat greens I've ever seen, serviced by a painfully slow pair of ancient double chairlifts. If you've skied or boarded for more than a day in your life, you'll avoid that area at all costs. (So don't park in the lower lot!)