We did NOT find that the lounge was over crowded when we were there. There was plenty of food and the staff is very nice.
The breakfast had a better and more plentiful selection of food than at the GF (where we were at concierge following our CL Swan stay). More items and better selection. The CL lounge is closed all day. Then reopens - it is open from 5-7 for snacks (cheese crackers, fruit, and a hot appetizer or two) and soda and water.
The hotel concierge (who helps any hotel guests) was awesome in securring some last minute PS's for us - and we found that they did a better job of this than our other WDW resort concierge experiences we have had.
True, the Swan CL is more limited than the Diseny resorts but my experience it was A LOT less expensive than the Disney resorts so it is not really fair to compare the two. If you were paying the same price, the Swan CL would pale in comparison as the hours are not comparable. However, if you are upgraded using points, or for free, or pay a minimal amount (less than $40 per day) like many people do, then it is a nice perk and another great reason why the Swan and Dolphin are a great value for the money at WDW compared to what is charged at Disney resorts.