Brooks saddles [note there are quite a few models] work well for some people and not for others. Everyone's butts are different so that isn't a huge surprise. On a recent tour with my GF I rode a Brooks and she rode a Terry woman's saddle with cut out. We were both happy and neither of us tried to talk the other into switching to a different type of saddle.
If you are satisfied with your current saddle don't worry about a Brooks just keep on riding what you have. If you are not happy with your current saddle a Brooks [amongst other options] is worth exploring. You can buy a Brooks from
www.wallbike.com and try it for 6 months risk free. If you don't like it return it for a full refund.
BTW - many folks in Seattle ride Brooks saddles so they don't melt in the rain as has been suggested above.
Although I'm happy with my Brooks Champion Flyer on my LHT I put a Selle Anatomica Titanico on my Big Dummy and that is proving very comfortable as well. If the Titanico turns out to be durable in the long term [seems to be stretching a lot] it may well supplant the Brooks as my favourite. If it stretches out in 1 season of riding it will be a nice saddle, but too short lived to invest in. Time will tell.