Please review a Renogy 200 watt solar system for me

That is a good price for that kit and there is nothing wrong with that controller. I have used a Tracer (MPPT) controller for 7 years now with great results.

Here is the link to the system I am looking at.

https://www.renogy.com/renogy-200-watt-12-volt-solar-starter-kit-w-mppt-charge-controller/

Why is the Trace not a good choice?

I had a faulty charge controller of theirs, it took a few weeks and close to 30 emails to get it replaced. I couldn't believe what it took to get a $40 part under warranty.

I have a 100 watt Renology solar suitcase, and I love it. It's easy to connect, easy to understand, and I haven't had to use the generator at all this year. (I don't use the microwave while camping, and can count on one hand the number of times I've used the air conditioner since I bought the trailer.)

Do you have any specific questions?

Include a link to the particular system you're considering and you'll likely get more input to your query.

Need more details, which controller. If it's the old Trace forget it. You want the newer model MPPT CC.