Q. Is this bike better than Hero bike - Discover 125?

Yes it is but aftersales of Bajaj Discover is really poor as compared to HF Deluxe and Splendor. Hero have low maintenance cost then bajaj and thats really good. Sales figures of HF Deluxe and Splendor combined are largest in india.

No it's not.. Hero is far better as far as engine and avg is concerned.. You can't expect much other than power with this bike.. Just completed 14yrs old model

You can tell most probably. It does decent ride and can be taken on long routes but can't be trusted for Long routes.