I haven't been, but I was confused about the groupon - does the $30 just admit one person? So you would need to buy multiple ones (and I know the limit is one) to get in a family?
We took our nieces/nephews last year and it was great! The kids were (4,3 & 2). We felt like it was a great deal for the money (we did the online deal where its like $7.50 an adult + 4 ride tickets, $4 a kid + 4 ride tickets). We had more than enough tickets to do the activities. There was a petting zoo where you can feed the animals, pony rides, toboggan (the 4 and 3 year old did this). For some of the stuff (like the toboggan ride) I think it was like 2 tickets but then they let the kids go as many times as they wanted. I think we spent a couple hours there and the kids loved it. I would definitely recommend it especially if there is a good groupon for it.
Re: Has anyone been to The Beach on Ice?