Sorted digests are a wonderful addition to any list.
I've used majordomo, Groupmaster, Lyris and many of the other mailing list management software programs. None if you have it autocompiled using Listserv. If you choose to manually compile a digest, the only pitfalls are that it is time consuming each day, yet you do have a bit more control over the layout. I myself find individual posts much easier to file and manage. Another factor to consider is that often those who subscribe to a digest mode once per day are likely to be lurkers and not participate in the discussions and those who are receiving individual posts as they are sent to the list are more likely to contribute to the discussion.