I guess some inspectors are good. So far, I haven't had that experience. The last house I bought, I felt sorry for the owner. The inspector found a bunch of things he said were wrong, and the owner faithfully hired repairmen, only to find that nothing was wrong. For example, what the inspector said was rot on a fascia was a stain. The inspector complained that there were two connections to one breaker -- turned out one of them was the doorbell transformer, and it's legal for it to share a breaker. There were others along these lines.
But, next, I felt sorry for myself. Because after I moved in, I discovered that not only did the inspector find a bunch of things wrong that weren't, there were also a bunch of things that were wrong that he didn't find. For example, the water heater was leaking -- there was fresh water and old stains under it the inspector should have seen. There was a shower faucet that was stuck so bad it was nearly impossible to turn on. There was water damage in a bedroom closet that resulted from a leak in the shower/tub in the bathroom next to it. The drain in that shower was stuffed up and wouldn't flow.
Most home inspectors get paid at closing, from the proceeds, the same as commissions, pro-rates and such. I had another inspector on another sale make the inspection and do the report, then refuse to send us the report until we paid him first. No problem with that if he had told us up front, but we waited for a week, then called to find out where the report was, then were treated rudely because we hadn't already paid him.
We also sold my Mom's home when she passed, and my Mother-in-law's home when she moved in with us, and had similar bad experiences. However, I caught the problems before the report was issued because of my experiences with the first one.
In Florida, there was no licensing and no regulation of home inspectors. Anyone can hang out a shingle and call himself an inspector. They usually buy a canned, boilerplate computer program that prints out the reports. The reports state that they have no liability, and no recourse if they miss something.
Like I said, I'm sure there are some good ones, and I'm not painting all of them bad. But, you have the right to be present when the inspection is made. Be certain you exercise that right and question everything the guy is putting in the report -- that's how I handled the ones on the Moms' houses. If you're a buyer, hope for the best, but make your own inspection. If you find something questionable, point it out to the inspector and ask him why it's not going in his report.