I’ve had the SmartCam PRO for awhile now and it’s great. No complaints.
I picked up the new SmartCam PLUS at Costco, mainly because I liked the look (smaller, black) and the price - it was about $100 at Costco, with an included SD card. I also knew that it would eventually be integrated into ST.
My only real complaint so far is that the WiFi range of the PLUS is much shorter than the PRO from my experience, so if I were to buy another camera, I’d buy another PRO.