This is the fourth day with this router and I understand the requirement of people who visit the review for the same. The ultimate need is an All in one device, so let me get straight to the juice of the product.

First, Its an ADSL 2+ Modem Router, avaialble in both Annexes (A/B) depending on the country of sale and Annexe A is for India.

Second its a/b/g/n certified [i.e N 300 (2.4 GHz) + N 450 (5GHz) some also state this is an A specification] concurrent / simultaneous dual band router, i...

The range is pathetic for such an expensive router. My TP-Link 341ND gives better range than this router and it costs 1/3rd the price. Two learnings from this purchase:

1. Better to go for a separate modem and separate router

2. Buy a router with external antennae (the more the better)

The range of this expensive gizmo is too horrible. I already own a Linksys E2000 router (bought in Canada), which has far better range compared to this X3500. Spending 10K+ for this device will not satisfy the needs of a user. Apart from the range issue everything else is very good. I completely agree with learnings of Fershid Raaj.

I realised that the adaptor is Netgear and stop working in 15 days.

Using it for a year now.
Completely no problems occurred.
Its worth the price tag.
Range is good.
1 port USB not enough though.