Last year I got annoyed with the elongated wait for my kickstarter bike and managed to buy a slightly used 10 speed derailleur model from a backer who no longer needed it. I'm a commuter, but I only use a folder occasionally for that purpose, I mainly keep one in the car for occasional use and I like to take a folder on holidays for exploring new surroundings. Helix is quite stiff and rides better than any other folder I've tried, but it's not as stiff as the Cannondale Topstone which I normally use to travel to work. Like any other folder with long handle post and long seat post, there is lateral flex and if like me you are relatively tall (32" inseam) the seatpost flexes quite a lot when riding on bumpy ground. I actually like that feature, it behaves in a similar way to the long travel thudbusters which I have on my other folders and it provides a very comfortable ride. I store the bike stood up at one side of the load space in my car so the slim fold maximises the remaining space for other luggage which is helpful. In my opinion there are some short comings in the design, principally the limited gear range of the standard 10 speed model which is only 327%. I like to have 500% on my folders if I can get it. The 11 speed derailleur Ultralite version yields 377% range, so still way short of where I would be happy. I took the opportunity to order the Ultralight upgrade kit last year and installed it a few weeks ago. I managed to replace the 9-34T cassette with 9-39 T which yields 430% range but the chainline is now compromised and the chain only just skims past the underside of the swing arm when running in 1st gear with a 42T chainring. I've had to put protection around the swing arm tube. Because the chainline is now closer to the centreline of the bike, the space available for the rear tyre when folded is reduced so that means the Donnelly MXP tyre supplied with the UL kit now only just fits. Larger section tyres like the standard Kenda Kwest may have to be squeezed into the gap which may cause issues with the tyre rubbing on the side of the chain. The standard bike has TRP cable operated disc brakes which are perfectly adequate and work well, but I like the Formula Cura hydraulic brakes better because they have better modulation and more stopping power. Both standard and UL Shimano shifting components work predictably well for both versions. One last point, It's great to have a folding bike that doesn't look like a clown bike and still folds acceptably small. I will still be able to use the same old Samsonite for air travel which I used for previous bikes although I will have to deflate the tyres which will be a slightly inconvenient.