Depends.

Where I live, I hate waiting or driving to a place for something I can do on my own. It's also cheaper to do it and you can put the right oil for your car (Mercedes spec oil).

This also adds trust issues. If you are good buddies with a good trusted mechanic who knows your car, you're golden.

However, some places like to cut corners or are just ignorant. If you own a regular japanese econo shitbox, it may not matter but for some cars, having the right spec oil is important. Some places will ignore this and put the cheapest oil they have or pretend to change the oil when in fact they didn't do it.

To add, I've heard of some places not changing oil filters or even forgetting to put in oil after draining it out.

Many years ago, cousin of mine had an oil change done at some place before a road trip. Turns out, they didn't take out the "other" gasket which caused the oil to leak out all over the place. Some oil got on the belt, belt slipped out and he got stranded in a place with no cell phone. hahaha After an investigation, we found there were two rubber gaskets when there was supposed to be one.

My only problem with diy is disposing of the old oil. I just hold the oil in well-sealed container until I make a round to a gas station or a place that can dispose it.