There are a large number of online-only (or at least their primary sales outlet is their web site) retailers in NZ these days peddling all sorts of imported items, and it's not always easy to tell the good from the bad.
I've purchased half a dozen items from www.tradetested.co.nz over the last 18 months. I can;t remember how I found them, but it was probably via their TradeMe listings in the past. Each time I've been satisfied-enough with the quality (knowing the items were most likely re-labelled items imported from China) and very satisfied with the sales and delivery process.
I have had two dealing with their support team over that time. One was for a faulty remote for an alarm system. The process for logging a warranty case was smooth and easy. I said I would be happy with a replacement or a refund. They offered a replacement or store credit, and I took the credit. The electronic voucher that arrived in my email had a 2 year expiry date, and could be part-used across several transactions if I chose. I was very happy with the response time and the outcome.
The most recent was for a fault with an 18 month old generator (that had a 2 year warranty) in the $1000-$2000 price range. An online chat session during the day (on a Sunday!) resulted in a support ticket being generated. Danica the support agent followed up with a phone call before 10am on Monday to arrange for the unit to be inspected. It's a portable unit so I need to drop it off, but they made an effort to locate someone close to me.
Yes it's mildly annoying that two items have had issues, but even famous brand items from popular retailers are not immune from faults. I feel like I have been treated as a valuable future customer, and that is what I expect to be in the future.