I have a little experience of the Burisch GT250 2013 model which I purchase a littee over a month ago. Despite reading varied reviews about this bike I decided to buy one and was thoroughly pleased with it. It will do approximately 16 mph under its own steam and have had it up to 26 on pedelec. It is a slick looking bike and I have found it to be great for what i wanted. I have predominately been riding it on the flat (Lincolnshire). The longest ride I did on it was a 20 mile ride on battery alone including some hills and it is a very impressive ride.
Unfortuantely it was stolen two weeks ago from a locked cycle rack in Boston town centre, so I am clearly a little disappointed with what I thought was a great purchase. I am now left with a charger and two bunches of keys and am still awaiting a response from the police.