I have that one and the ESD vacuum.
The blower is good. I used it to blow leaves outside.
The vacuum is worthless for the small areas, despite the small attachments due to loss/leakage and airflow inhibiting design where some attachments in line closer to the vac are smaller than the ones towards what you're cleaning. It's good for cleaning out dust filters and the outside of the case (USB connectors, I/O plate, etc.).