Remember my cousin rented a plate compactor that kept dying every twenty minutes. He spent more time driving back to the rental yard arguing than he did on the actual job.

Honestly, those magnet kits are hit or miss. I've had good luck with the Park Tool IR-1.2, it's a bit more heavy duty for the tight spots. Saved me a real headache last build.

I burned through three straight bits on a single oak cabinet project last year. The tear-out was so bad I almost gave up. Switched to a spiral upcut bit for the next one and finished the whole job with the same bit, edges came out smooth as glass. It's not even a close call, the difference is huge. The way it pulls the chips up and out just leaves the cut surface perfect every time. I tell everyone starting out to skip the straight bits entirely now.