Well, that was a bust. Will be returning it. It was worse than my cheapo Antop flat panel I got at Princess Auto in their surplus section. I put it back on and changed the orientation so the flat is pointing in between the two towers. It's now better than the more expensive Channel Master. All my channels are now 5/5 bars except for one that is 4/5. I previously had it pointed to the furthest tower but the closer tower I was having issues with.
And in case anyone is interested, this is the only place I could find it:
Buy Antop PL-402VG Pro 4K Antenna "Big Boy" Flat Panel, 4K TV Antenna with fast shipping and top-rated customer service. Once you know, you Newegg!
www.newegg.com
Could be an older model and it doesn't seem to be available in Canada. I'll be holding on to it.
Edit: After a rescan, I'm now picking up 3 US channels (2 PBS and NHK-World) but they are very weak and unwatchable. Never got them before.