Sure!. I purchased a Citizen Gotham 7 thinking it was going to be an awesome ride. So it shows up to my house I un-box it, set up the derailleur made sure everything was perfect. Went for a ride, everything was going fine until I hit a somewhat dangerous part of town and the chain decides to pop off while riding. So here I am at 11pm trying to fix a derailleur that refuses to line up correctly. Ended up walking the bike home. Next day I bring it to a bike shop he thinks a part of the derailleur is bent ( can't recall what part ). He gave me a price for the part and the service. I decided to go against it and try to fix it on my own, which I did but no luck the chain kept flying off. Now this was maybe a week after owning it. I have no patience which is my own fault, I'd have to ship it back to citizen which would've put me $60 in the hole just for shipping. So what I did was sell it for less then what I paid.

You win some you lose some, so for the bike I have now I went to maybe 8+ bike stores and tried out various bikes and finally fell in love with the one I have now ( Fuji feather ). Also the Gotham was my first bike after maybe 10+ years. But I'm happy now .