Using the BT WVRC-8 is a matter of matching the product to your application.
If you need to manage a directional, with access to monitors, then the BT is probably not your box. Sine's system, while old, will hold function relays for Potomac monitors. I don't know if Burk's system can do that (none of mine are in a directional).
For simple on-off, power change, metering, etc., the Broadcast Tools box works just fine. It's clock updates off the internet, so you can pretty much set it and forget it.
Granted, the web / phone functions are nearly separate systems. I don't use the dial-up, so that doesn't matter to me.
At around $800 or so, its faults can be reasonably overlooked.