I have used Suzuki Swish in Bangalore road for 3 years and this is my personal experience. Scooty is comfortable and this is the only advantage as per me. The aerodynamics is not good as it used to skid at high speed if no pillion rider is there. I used to service in Bangalore-Whitefield service center and I keep on telling them I am hearing a sound during ride please check the engine but service guys used to tell me sir that is normal. After using 2 years most of the engine part need to be changed and I have paid 12k from my pocket for the same. So for long run if you are using it then the service cost will be more.
In the apartment basement water only entered to Suzuki scooty but not to the Hero and Honda scooty so that indicates poor manufacture standard.
I have one Hero pleasure(4 Yrs) and my friend is having Honda Activa(4 Yrs) both are running fine without any engine service. But comfort and pick up wise I will suggest Activa.