I just enjoyed a six of this seasonal from Sweetwater Brewing. Since I moved to Indynaner from FL almost 4 years ago, I haven't had much opportunity to sample Sweetwater brews. I've enjoyed their very enjoyable 420 Pale Ale for years. But I fortunately passed it up in the grocery store during my beach vacation in FL and got on the Motor Boat.
This is purported to be their version of an ESB and I can say that it meets expectations on all marks. It definitely is an ESB with a caramelly malt flavor that balances the substantial hop bittering. The hop flavor and aroma are definitely American with significant citrus notes, but there are very pleasant floral notes that compliment the typically citrusy American hop character.
I have to admit that I would enjoy a little less citrus while keeping the floral to make it a little more English, but this is still a very enjoyable beer. An ESB doesn't have to use English hops, so it can still be called an ESB. Seek it out.