We live just 30 minutes from Hershey Park, and would absolutely recommend this hotel to anyone visiting the area, only downside is $$.
We've stayed at the Hotel 4-5 times, while attending weddings and concerts at the Hershey venues. Every stay reminds me of a Ritz Carlton, very clean rooms, very courteous staff and they do everything they can to make your stay memorable.
I'd highly recommend the spa, my wife rates this as one of the best that she's been to in her travels. Our friends often get our wives gift cert. for the spa for Mother's day, Birthday's etc..
If you choose not to stay at the Hotel, their Sunday brunch is a must in the crystal ballroom, Awesome!!
Only downside is the Hotel is pricey, great for romantic weekend getaways or families if you have the extra cash.