After working with WordPress for a decade, I have opinions about the absolute best headache reducing plugins and tools.
Here's an actual example of a conversation I had with a support rep for a popular not-to-be-named cheap hosting company.
Me: My client's site keeps crashing, can you tell me what's wrong?
Rep: You're probably using a bad plugin, try deactivating them to see which one is causing the issue.
Me: I only have Woocommerce installed on the site.
Rep: We don't support third party plugins.
Me: Woocommerce is a WordPress owned plugin, can you give me a hint as to what the problem is?
Rep: Try contacting your developer.
Me: I am the developer.
I then copied the site over to WPEngine and it worked perfectly. I never found out why it kept crashing on not-to-be-named hosting, but it wasn't the first time I had that issue and definitely not the first time I couldn't get a hint as to what was causing the site to crash. I always encourage my clients to pay a little more and save hours of wasted time and downed sites.