Stu1: Hopefully you can get it working for winter, they have good reviews. I am looking at this model https://www.ecowitt.com/shop/goodsDetail/1
I've also got a Ecowitt setup, there latest Tempest style one which is similar to the tempest. The model is the Wittboy or WS90 + GW2001, 7 in one sensor platform (https://www.ecowitt.com/shop/goodsDetail/245) works fairly well and feeds into Home assistant (with some work and a couple of minor bugs) plus various online services fairly easy. With regards to accuracy you need to calibrate the pressure sensor (absolute by default rather than relative), and the rainfall is +- 10% if the other sensors within 4-5km (probably around middle of the pack).
You can see data feed from one here, and if you zoom out on the wonder map you'll see a pile of other PWS you can compare the output to...
https://www.wunderground.com/dashboard/pws/IHAMIL332