Quick and efficient
Bought a Vax on a Groupon offer and although I had difficulty with the voucher, Groupon suggested this was to do with volume. Voucher worked fine after a couple of days and once the order had been placed the Vax arrived in two days, was as described and works well. The only disappointment was that at the beginning there was an extra offer to buy Vax solution when you ordered, by the time my voucher worked you couldn't add this to the order. Wouldn't put me off using again though!