not sure what to review. it is a pretty old and very popular model so there should be lots of proper reviews out there.
i only got it because i was not happy with the size of the
TP-Link router i was using. this one is insanely compact. a friend was coming to india from states and he asked me if i wanted anything. at usd 50, this made a lot of sense.
it is somewhat complicated to configure compared to regular routers. but seems to be quite stable.
i am running it in load balance mode which means that both connections are used at the same time.
but internet goes down for as long as a minute when one of the two connections disappear (abs mostly). so it's kind of annoying. tp-link had the same problem but the time duration was very low.
there could be configuration changes that might fix this. but it's kind of complicated as you have to find scripts online and run it on the console. user interface does not really offer a lot of options for load balancing or failover configuration.
in short... i only got it because i had an option to get it at 50 dollars. i like it because of the small size. it does work fine as a router for both load balancing and failover. but only get it if you understand what you are getting and what you would use it for. and be ready to read a lot of online articles to find out how to implement advance features as not everything is accessible from the backend user interface.