I rarely eat Farang's food ever in Thailand but yes, this one does look good and I'm sure it tastes good just like you mention. If you're around in BKK still (not sure but guess so since your username is @bangkokbrit) and would like to try a very good burger just like this one, I really like their burgers at the place called 'MASH' in Silom (close to Saladaeng BTS station). So juicy and good taste though, the price is totally not for eating every so often. Check it out :)