I bought this(Karcher MV3 - 1400 wt) 3 months back through paytm for a discounted price(5200/-).
Good:
Product quality(body) is good
Performance is as mentioned.
Wet and dry
Sound is OK(bit noise but acceptable)
Bad:
Even though you vacuum floor, you have to clean it with water to remove fine dust. It is not 100% cleaning
Dust bag is not reusable and you have to maintain the dust bag with dust until it completely fills as It is not that cheap to buy dust bag for each vacuum
You have to remove dust bag for wet cleaning(OK to remove but bag is not in good quality - It may tear if you try to keep and remove for 4-5 times)
It doesnt clean dust on window grills. You have to rub either with cloth or brush first, then blower to remove dust.
It becomes hot if you use for 20-30 mins continuously.
conclusion:
I bought it after so much of research but still not satisfied completely. I never used vacuum cleaner so I dont know much about other brand products.
I suggest not to go for this unless you dont have any other options.