After purchasing a Bird Air Im very impressed with the Segway E45. The non puncture tires were a very important deciding factor. Shock absorbers make a difference because the Bird Air doesn't have that feature. The throttle feels powerful and the speed is controllable to experience riders. Braking is customizable via the segway app. I changed it from light to meduim and there is also heavy/strong brake power. There is also the traditioal step break. The scooter can be a traditional kick scooter if the battery depletes. I travel to work at night full power sports mode with the headlights on and can make it 5 miles with about 60% battery left from a full charge. Another 5 miles home without the headlight and stop to the store on the way home still with 30% after the 10 miles driven. 40 pounds feels like a great quality adult scooter. Customizable lights to be seen at night via the app. It keeps track of your miles too. Now that i have over 100 miles driven on these e scooters i had to give a realistic review. No more expensive uber and lyft to work. The police see me all the time and dont bother me, just always pay attention to the law! Stay in the bike lane or as close to the curb as you can. Surrender the road and make it easy for cars behind you to pass, if police see you can handle yourself in traffic you'll become a recognized local driver. Perfect to drive to work and lock up and drive home for Free! Gas costs money!! This one takes time to charge but is worth it if you expect to drive 10 plus miles? And this thing is a monster uphill. 20%hill grade vs 8% on my Bird Air! Easy to fold and pick up fling over my shoulder and walk around with it. I weigh 150-160 and I can go grocery shopping carrying it on my shoulder the entire time even while scanning my own items. Its 40 pounds its truly not heavy. Speed is fine just remember humans om average run 5 mph. 15mph for track runners. And the record is 28mph. So the human body isn't designed to fall at those speeds! Find your style and take it easy. Understand its much faster than a bus that doesnt go directly to your destination. So relax and drive with 100% focus at all times. I drive with car mirrors passing me about 4 inches from my elbow. If you cannot drive in a straight line, practice until you can before driving in the street. The future is here so set the best examples to keep these things around! Drivers respect us, give us our space because we arent hiding in a car surrounded by protection sitting down with windows and a seat belt. Coexist and enjoy life!!Be aware of the neighborhoods you ride in at all times. White kids called me the N word as i drove past because they were jealous of my e scooter and unbothered energy. Stop at red lights and stop sighns. Make sure you are comfortable stopping at a stop sign and kicking to go again while maintaining balance. Always keep am eye out for rocks and other road hazzards. Make sure your reaction to rough terrain isnt push down hard on the acceleration! Always be in position to brake if needed. Bending your knees helps with turns. And dont be afraid to slow down as you turn for full control! Look out for potholes !!! If the streets in your state has potholes i suggest a helmet. Drive safe! And also research locks to always lock your machine down! The segway app is NOT secure enough. Psychically lock it & use a key! People who drive cars dont get to work for free but with this you can!