^^
Not at all!!! You misunderstood. FZ-S is lumpy performance only in comparison to RTR180, not otherwise!!! And in City traffic, both are rather equal... Fat rear tyre of FZ-S helps in braking but it compromises the bike's nimbleness.
and leme clarify my previous post:
"+" means POSITIVE THING
"-" means NEGATIVE THING
Now when i said FZ-S has lower maintenence cost, that is because of the much better refined engine as compared to not-so-refined engine of RTR.
Also, being 150cc it provides slightly fuel efficiency than RTR. (After accounting its Fat rear tyre)
Overall the RTR is better than FZ-S as initial package but when youve prioritized Looks and de-prioritzed racing spirit, then the FZ-S is the bike for you as its value shines in engine refinement and hence longer problem-free life.
Regarding issues with the bikes, il check them n shall let you know.
As you asked, if i were to purchase a bike for the city, this would be my preference:
Pulsar 180: 2009 edition : 5 / 5
RTR 180: 4 / 5
FZ-S: 3.75 / 5
But, here the decision is YOURS and not mine.. Hence you should really buy what you heart says as the RTR and FZ-S are not miles apart. Both are a good purchase, just that the FZ-S seems to suit you better.