Fair, I would personally pick the best Speedtest on 1 6 or 11 and see how you go.
I can't say my Speedtests are very good. Usually 11PM is the worst speeds I get, which is common as users head to bed and stream on iPads etc.
On 2.4 I vary from almost no throughout (like struggle for a 320P video) to 50Mbps...
I do live in a new-ish build block of flats however. The way the flats are setup I pickup everyone's AP on my floor with strong signal (4 other flats) and upstairs is quite strong too.
I have got everything other than a printer and a tv on 5Ghz now... although I do need to get around to splitting the SSIDs as devices often stick on my 2.4. The smarthub type b seems to do some sort of band steering close up.
EDIT: great shout on the 5GHZ adapter front!
Edited by ukhardy07 (Tue 05-Feb-19 23:55:16)