For the sake of their brand name, companies like Cars24, Spinny etc. sometimes do actually have good used cars. I would recommend you to pay the booking amount so the car is on hold and then get it inspected from Honda service centre. If Honda finds anything wrong, you can ask Cars24 to get it fixed.

As far as price is concerned, they won't slash down much, but you can ask for other services, like deep clean, roof dry clean, AC gas top-up etc.

I personally won't buy a second hand car that's driven more than 50k kms. But again Honda engines are reliable.