We're an iPad family. Dh and I have the iPad 2, 64Gb with 3G. My son has the iPad 1, 16 GB without 3G. I received it as a gift from d for Christmas, and it took me a while to grow into it. It was a great entertainment device initially, but I'm using it more and more for homeschooling purposes. The autocorrect drives me nuts, but I have the wireless keyboard so it's less of a bummer.
Dh has one for work, and he supports them for the executives. He too thinks that they are great entertainment devices, but as a workhorse...not as great. They aren't as efficient, but they are super portable, have great battery life, and they can e used to take notes, images, etc.