I like Optex here. That said have played with a couple of other outdoor PIR sensors.
The Risco is a bit big mounted on the side of the house but from a distance you cannot tell the size.
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For the driveway / garage here use multiple wired PIRs (aft and fore), wired under the driveway sensors, RFID for house cars, multiple wired sensors on the garage doors and CCTV (cameras all look at each other).
Multiple types of sensors / triggers help with outdoors stuff. Mostly though it was after hours lighting. Daylight after midnight works best for me. These days with LED lighting you can get much more for less.
I was using inside text to speech for night after trigger while in house events but these wore thin relating to WAF so went to simple chimes.....one if by land two if by sea (N, S, E, and W). In the 1990's used outdoor speech which wore thin with the neighbor who's master bedroom faced the driveway and speakers were on the detached garage. He called me once while on vacation and asked if he could disconnect the speakers outside.