Excellent honest advice - does not try to sell you something more expensive.
I've bought a number of UPSs from UPS trader, from about 500 VA to 3000 VA. Nathan, who I assume is the owner, has never once suggested the more expensive models.
Today I was told the APC SUA XLI series are the most reliable, and not to be persuaded by manufacturers blurb or higher prices. If you want to pay £650 for a 3000 VA UPS with digital displays for load and battery they will sell you one, but they will suggest a £400 more basic one is better! APC, along with other manufacturers, will always produce newer models, with more fancy features - digital displays for battery percentage that have a resolution of 1%, but probably an accuracy closer to 20%, so these fancy features are of no real use.
They are also very flexible. I ordered an APC SUA48XLBP 48V DC Battery Pack to triple the runtime of a 3000 VA UPS. They only had the one, and managed to drop it from a fork lift truck, so needless to say it got damaged! So they cancelled the order, and suggested another model of battery pack (SUA48RMXLBP3u) which would fit, at the same price. However, I would have preferred the SUA48XLBP, so asked if I could have the one that fell off the fork lift truck, and them send me a better condition one when they get one. Nathan said he was willing to do that, although there might be a long wait. I decided to go ahead, get the damaged one, and them send a good one, without batteries at a later date.
A couple of years ago I bought a UPS and a battery fault developed 6 months later. A replacement was quickly sent out.
I asked once for the price of a serial cable. I was given a price, but it was suggested a network card was not much more, and is much more useful. They did not suggest the most expensive card that would fit. The network card was indeed a much better solution than a serial cable.
So essentially Nathan will tell you whatever he thinks is the best solution.








