Smooth integration. Smooth ride. I purchased the extra juice battery pack for longer bike rides and the LCD screen. Straight forward integration with only basic bike tools required. Although it took me longer than 1 hour to incorporate, the parts provided were well labeled and instructions were clear. The lengthy install was due to my own bike and having to remove parts to swap the original wheel with the Swytch Wheel. The performance of the bike wheel is pretty nice, it works very well on flat terrain and can take me up most hills without a problem. I do believe without the LCD screen, you are unable to change power levels which I think is required to go up higher grade hills. I have a LCD screen and can change power levels which gets me up higher incline hills. As for the power levels, the 5 really don’t matter too much on single speed bikes on flat grade since I cannot fully take advantage of a bike gear + pedal assist. I usually stop seeing a difference on flat inclines at power level 3. If I had a multi-speed bike, I believe I could see a difference with level 5. But I don’t think this issue is a problem with Swytch - don’t let that persuade you away. The extra juice battery pack I got I felt like was a good investment and peace of mind when biking further than you typically do. I haven’t been able to bike far enough to know the real limit. But I’ve been able to make 10 - 12 mile trips with ease and be able take a few higher incline hills. I hope the battery capacity does not lower as time goes on and I can continue to ride at length but I will only find out as time goes on. I noticed that without the LCD screen, I was unable to unlock the full potential of the system; features such as: different power levels, monitor battery level, and disabling speed governor. It’s worthy investment so pick it up when you can. Right now, after receiving my bike wheel order, I am unable to make additional purchases from the website. I was lucky to invest in purchasing accessories when I was putting together my kit online. They seem to not be permitting accessory purchases right now. Make sure you buy them when you purchase your bike kit. Lastly, the Swytch Bike system uses parts that seem to follow a standard across all electric bikes such as the electrical wires. However, you cannot purchase after-market accessories such as a throttle or LCD screen on Amazon. Some “light” investigation online from others have mentioned they believe that Swytch “crossed the wires” in their proprietary parts so you can’t plug in 3rd party accessories and expect them to work. Swytch seems to want to move towards a “closed source” system but won’t allow you to purchase accessories after you have received your kit online nor purchase any after market parts on Amazon so you are stuck. I’m sure most users including their own employees believe in the ability to maintain and self-repair their own bikes and electronics but it does not seem that Swytch allows you to purchase 3rd party accessories but rather buy their “official” accessories that are rebranded generic parts made to work with their system. We’ve seen issues with companies trying to lock down systems that are very generic to begin with and I believe it just limits their reach. You could argue that it helps them control the quality of the product; I think you should leave that to the customer to decide if they want to expand their system. Overall, I’m happy with my bike kit. It was a great investment after 5 months. I’m disappointed by the initial understanding that the system is “closed source” and I cannot buy after-market accessories.