So much for not caring for G.fast.
Perhaps you should have tried VM for yourself first as opposed taking one single opinion for your decision making. If that's all it takes to change your mind, I worry for you...
And max, if you do order Zen G.fast, please read the terms and conditions just in case you cancel your order with them too. More specifically:
12.2 The following cancellation charges shall apply for orders which have not yet been
activated but which have been processed:
a) where cancellation is more than 2 days before your order delivery date, a charge of
£10.00 (plus VAT) will be payable; and
b) where cancellation is 2 or fewer days before order delivery date, a cancellation charge of
£85 (plus VAT) will apply.
Also, as I mentioned in a post of mine in a different thread, go with 160/30 first then see what the engineer's JDSU says. You can upgrade to 330/50 later with only a new contract, but downgrading counts as early termination.