Remote starters are a security risk.
Car theives love them.
They are, and they do.
We dont have one on either of our current cars. I used to own a car electronics store and we sold tons of remote start units. The brand we had the best results with was Astro-Start, and by a mile.
I had one on our older Subaru so that I could use the cold temp start feature as I often left the car at a trailhead in the winter where there was no available plug in and it would be -30C for the days I was gone. But, that car had no factory anti-theft. Today, I would NOT install one in a car where it required tampering with the factory anti-theft.
People assume that it's an easy install, and it can be, be keep in mind that it requires tapping into a hot full 12V start circuit and if your installer is a goof, you run a real risk of burning your car up. The install is MORE important than the brand and anyone using non-soldered joints, no loom, etc. should not be allowed near your car.