In fact WL IP is very good product.
What is good in it?
- working perfectly
- no need to setup
1 min interval is second best options. If there won't be WU RapidFire, then WL.COM with 1 min intercal is the best.
Other services have latency. Like PWS where you have to wait for data 3-4 minutes. Plenty of services don't want your data more frequently than 5 min, or even 10.
So WL.COM with 1 min has second place, only because of RapidFire.