DOLS - A Few Questions - And would you recomend it?

The client I am at is moving away from the notes client to a browser client.

They would like a couple of the simple databases still available to users while not connected.

DOLS looks like the right tool. I just have not seen any recent documents on it, it seems like all articles talking about it are from 2000.

a few questions I would like answered are:

1 - How does the licensing work for it? Does it require a full notes license or would a server CAL work.

2 - Have people had good luck with it and is it something that is going to be around for awhile with notes?

Thanks!!!