Asus DSL-AC68U vs Fritzbox 7390

Hi there

So my dilemma is this:

After many weeks of phone calls to and from spark I managed to get them to fix something on my line which took my connection speed from 3500kps up to a whopping 7200kps! Certainly not big by most people's standards....but when you internet speed doubles, its a pretty cool thing - especially after 9 years at the previous speed.

I purchased an ASUS DSL-AC68U 6 months ago (pre internet speed doubling) hoping to get a bit more of a speed boost and better wifi coverage. I certainly got better wifi coverage and a bigger suite of settings to play with but the internet never got a boost.

Two months ago I acquired a Fritzbox 7390, and have been using that in place of the ASUS due to a very minor speed increase. However the wifi is pretty bad and there's not as many features as the ASUS.

So post internet speed boost and the Fritz is significantly outperforming the ASUS in terms of speed, which is really ripping my nightie as I paid a lot of money for all the bells and whistles but I can't use it as the difference is just to great.

Current speedtest:

Fritzbox 7390: up 6.17Mbps down 0.84Mbps

ASUS DSL-AC68U: up 4.9Mbps down 0.76Mbps

I've tried tweaking a few settings on the ASUS but I just can't seem to get the same speed out of it which is a crying shame given all it's extra features.

So I need help in deciding the best course of action. I want the speed of the fritz, but I want the better wifi and features of the ASUS. Any thoughts?

Cheers

Carl