We just returned from our first family trip to Disney. Chose to stay Beach Club Concierge. For me my #1 reason for staying concierge is CONVENIENCE!
For our family, the pre-planning assistance from the BC/YC/BW IPO staff was outstanding!!!

We had lots of our own ideas on how to plan a special trip for our family and the IPO staff offered many additional ideas to complement our own. When it came time to schedule PSs, we got daily e-mails confirming our exact choices of places and times including CRT first seating. All I know is that at 7 am every day I'm getting 3 kids off to school and myself off to work so NOT having to spend phone time with Disney saved me both $$ and more importantly TIME! We also had to change PSs late in the game due to our own whims as well as a "surprise rendezvous" with our extended family -- all those weekend PS changes were made without a hassle! During our stay the concierge staff changed a Friday evening PS for us with just a few hours notice. These are all things I could try to do myself, but considering I spend 51 weeks of the year as my family's "IPO Office", what a thrill it was to have this level of service for myself. Totally stress free!!
Some have felt that you get prompt seating and "better tables" with concierge bookings. We did have great tables and prompt seating, though I can't compare based on having no prior experience. We did get an AWESOME room upgrade at the BC from garden view to an absolutely perfect lake/Boardwalk view with full balcony! Perhaps we were just lucky... all I know is that we were EXTREMELY appreciative!!

We also had several "special treats" in our room upon check-in -- some we'd arranged through IPO, others were pleasant surprises for us!!
We also enjoyed the convenience of having a quick concierge breakfast several mornings, an occasional snack and one "happy hour" (we were a bit "commando" on this first trip

), and several dessert and cordial treats. I would not do concierge for the food alone, but the convenience of NOT having to do restaurants to feed 3 kids every couple of hours was worth it to us.
Our kids got a kick out of the housekeeping and turn-down service as well. Several surprise "towel animals" joined their own menagerie over time and the animals took to "watching
TV" in the evening -- the kids trying to guess who would be "holding the remote"!!
Would we do it again? In a heart beat!! Necessary? Probably not, but definitely a convenience that made our pre-planning of our trip all the more enjoyable and hassle-free!