I purchased one of each of these cheap sensors recently from aliexpress for testing purposes. Compared with the ubiquitous HC-SR04 (*), I liked the idea of having a combined emitter/receiver, i.e.

All PWM/EN pins are output-capable GPIOs and avoid the strapping pins 0, 2, 12, 15 (except GPIO 2 used as LED only, which is fine — it's only an issue if held LOW at boot, and our default state is OFF ...