Speeds certainly seem to be, done speed tests at various times last night and all was well. Yes I suspect it is the Puma problem, which luckily won't affect us for what we use it for.
The Hub 3 really is basic, also in router mode you can see the channels it's using but in modem mode you can't.
Cost is currently £37 a month, I did want Vivid 350 for the faster upload but its not available yet.