The tricycle is nice for the price but don’t believe the assembly time listed in the instructions. I am good with tool and understand all the components involved. But the assembly time estimate of 130 minutes took me 10 hours. Everything seems of good quality but the derailer is not top notch. I have twice adjusted it and still need to do another go at it.Although overall I llike the bike, I'm very VERY glad I paid to have it assembled. The bits and pieces just come in one big bag with no guidance as to what and where they go. Additionally, as stated - the holes weren't exactly lined up and many had to be filed in order for the bits to fit. NOT something I could have done at home.The bike is decent, but DEFINITLY pay a professional to put it together, it will save your sanity.The bike is a solid product. However, assembly is best done by a bike shop.I’m very mechanically inclined, but one needs to know their limitations and know when to bring in the pros. I decided that for the derailer. I was able to complete assembly of the rest of the bike prior to bringing it to the shop.The seller was readily available to address questions I had.I recommend this bike.Great quality, easy assembly, but the gearing is a little lacking for an adult. All the way in high gear and you have to still pedal hard to generate speed enough to keep up with small children.There was a cable missing and a cable damaged. We had to purchase an 18 inch cable and replace the damaged one. Other than that, I love the bike now that the assembly is completed.I purchased this for my 12yr old who is autistic.He would see his younger brothers ride on their bikes and even tried to ride one of theirs.So after trying to figure out the best solution for him to be able to ride especially it being his first time this was a great solution.He loves it and rides it all the time,once he figured out the pedals have to keep going forward he was gone,and with it having 3 wheels I don't have to worry about him being able to balance.He really likes that it has a bell on it too!It also has a basket on the back, a cup/bottle holder and 7 speeds which as of right now he doesn't need to use them but it's a great starter bike for and older special needs person.This bicycle is absolutely beautiful.I LOVE IT!I had it built by a local bike shop for 150.00..well worth it...It's Everything a tricycle can be..I ride it everywhere and it's a beauty!!As a senior Citizen I needed stability and it's easy to pedal..7 speeds.Thank you.The bike is beautiful. Actually arrived early (bonus). On pavement it handles quite well on dirt roads not so much. I am happy so far. Down side you need to go to a professional to put it together and there was a tear in the seat.