I have ridden the bike for a few days now and thought I would give an update. The things I really like about the bike. 1. Torque - this bike gets up to speed very quickly with the relatively small geared motor. It is similar to how the Easy Motion geared motors feel with more torque but does not pulse like the BH bikes. I don't have any large hills here to climb but I found a few areas where I could climb a couple of hundred feet. It is real impressive. 2. Brakes will stop you on a dime. They actuate without much pressure. 3. Very comfortable bike to ride. The body position is slightly more aggressive than the Stromer ST1 for comparison. I would say the handlebars are aprox 1" lower for my 5'10" frame. The Schwalbe Super Moto X 27.5" tires with the front suspension fork dampens our rough roads. 4. The bike feels very nimble. It reacts quickly. 5. Shifting on the bike is quick and clean. General stuff 1. The assist levels act like a speed controller. The assist gets stronger as you go up obviously but the speed where the motor stops assisting also goes up. (all in kph) Eco - 21 Tour - 26, Climb - 31, Sport 45. I am basing this off of the same level of effort I put into the Stromer ST1. My heart rate stays between 145-155. 2. I think the bike will out accelerate the ST1 but it does not hold the speed as easy. 3. The display only reads kph you cannot change it to mph. This is supposed to change with later models this year. I am not sure if mine will be able to be updated. 4. The frame feels solid. I was 346lbs this am. I do not feel any frame flex from this bike. Very well made. 5. I rode twice yesterday climbing every little hill I could find, cruising on deep gravel and groomed gravel paths. I totaled 32.7 miles on Strava. I was trying the same sections on all four levels of assist to compare and finished the last segment with a 9 mile Sport speed run home. This battery is larger than the ST1 but I think it consumes a little more at the same speeds. My thought is you will get a similar range from this battery as you get from the 11.5 ah ST1 battery. Things I changed 1. The saddle...lol definitely not made for my bottom side. I put a Brooks B67S. 2. The grips - I changed to Egron GP6. 3. The Pedals - The welgos which came on the bike felt really small. The X shape left the outside of my foot unsupported. I felt like I was trying to move my foot closer to the bike for support. This made me rub against the crank arm. 4. Stem Riser - The riding position is probably about 1" lower on the front end. The stem riser I put on is a little too tall. I may take it off and see if I can adjust. Things I would change about the way this bike operates. This is a short list. I really enjoy riding this bike. I have not ridden the ST1 since this bike arrived. My general thought is this. If I am going riding I will probably take this bike. If I am in a hurry or commuting on a day when I just want to get the trip over with...I will take the ST1. 1. I really didn't like the speed wall you hit at lower levels of assist. The more I ride this bike the less of an issue it becomes. If you want to go faster just change the assist level. This is very different from the ST1. With ST1 I put it in Eco and forget about the assist level. I also think this is why the bigger battery on the Bulls will equal the range of the ST1's slightly smaller battery...The Bulls consumes more watts due to having to up the assist level to get higher speeds. If you rode at the lower speeds I thinks the range of the Bulls would probably be better. I will not be able to confirm this...I like to ride as fast as I can. Sorry. Inclosing this bike a lot of fun to ride. I wouldn't hesitate to buy this one again. I would be happy to answer any specifics if I can. Here is a short vid if your interested.