Yes it is. You should have wifi access from all rooms. Last year in E2 our wifi access was very limited mostly only available from the balcony. All preceding years our internet access was great and had fast connection speeds. There are wifi repeaters located in various locations around the resort so access should be pretty good all over. Also, there are four or five computers available in the games room next to the lobby as well as wifi access there.
Yep. They have the Internet. We used our Netbooks in our rooom and while at the pool. My Kindle also worked great. If you don't want to bring your own laptop, you can use the computer room next to the lobby.
We just got back from there this past saturday (so sad!) and we were in the B block, we had access from our patio and very low access in our rooms. Some nights we did not have it at all, especially when it was raining.