Theyre a lot of fun to ride if you’re not going ip and down alot. The pedals are fixed to the gear so it keeps ‘pushing’ your feet around if you try to stop pedaling without enough resistance, which takes some getting used to, but in general it feels like you have alot more control of the movement of the bike, especially at lower speeds, and since each pedal is always a constant amount of movement forward, it can lead to a very fine feeling of movement and control. Any of those bike dancing videos are done with fixies, as are bike polo games usually. And yeah, theyre significantly easier to maintain and fix.