The last time I did snowboarding was 4 years ago, so the difficulty of the tracks was one of my concerns. Thankfully, they have tracks with varying difficulty, apparently the black track is for experts. I was driving from West LA, so I would give you some tips on what you would need to prepare for an enjoyable time at Big Bear Mountain Resort.
If you are a beginner and plan to drive to this resort and it takes more than 3 hours to get there? Then I would recommend staying over at a hotel or an inn nearby for one night (preferably 1 hour drive) to prevent fatigue from kicking in because like others have mentioned, you would be driving around winding roads to get to the destination and trust me when I say the drive up there was not enjoyable at all.
Anyhow, please buy your lift tickets ahead of time because it will be really troublesome if you don't. I would also recommend buying your own clothing before coming here (snowboard clothing, gloves, goggles, winter scarf, beanies). As for shoes and the snowboards, you can rent them here but remember to book them ahead of time at their website (preferably 7 days ahead for the promotional discounts). As for parking, there are plenty of them and they are free of charge. As for the snowboarding experience, I loved it. I just wish the signs that they put up to let people know which tracks to take are bigger.
Overall, it was a fun experience and I would come again.