I need opinions on butlers

When you hire a butler, they will be like a hired NPC, but can live in your home. You can even set a bed for them and everything, and can lock the butler's room from everyone but them as well. They will generally do everything all those other hired NPC's do; cooking, cleaning, gardening, and even babysitting, plus a lot of extra! They can be your DJ if you have Get Together, or your personal masseuse with Spa Day. A butler's duties were well done this time. However, like all other created sims, they will have random traits and aspirations and will have random names and appearance. I've only had one family that was rich enough and had a big enough house to warrant hiring a butler, but the first butler I hired for them was a very mean Indian butler and had chosen to not only let them go, but also delete the sim from my save. The next butler I hired was this nice elderly lady, who somehow is immortal to boot (she's lasted a couple gens without dropping dead so I presume the game glitched her to be immortal), and has been the great family butler ever since.

If you prefer to change their appearance though, you might want to type into the command bar:

cas.fulleditmode

then right-click the butler to change Sim in CAS, which will allow you to change their entire look and even their traits/aspiration (but beware that changing traits may still keep leftover moodlets from their former traits intact). Of course you can make them a playable sim as well, but that refutes their job as your butler and you'll have to hire a new one instead.