As someone who doesn’t use these, the first things I think when I enter a home with them are:

• This smells nauseatingly, overwhelmingly artificial.
• This can’t be healthy (spoiler: correct).
• I wonder what they’re masking to want to spend money on these things.
• I would prefer to be outside right now.

OP, as the other comment said, keeping a relatively neutral smell hopefully is a good goal and then maybe add pleasant undertones later. Instead of trying to introduce positive smells (cook at home more often or grow some plants, and you’ll get a bit of that!):

• Make sure dirty laundry is kept in a hamper with a lid and washed at regular intervals.
• If you have pets, make sure they’re housetrained and that accidents are cleaned – preferably with an enzymatic cleaner. Bathe your pets regularly too. If you have small animals in an enclosure, keep that clean.
• Shower regularly, and clean your bedsheets regularly.
• Make sure the house isn’t excessively humid.
• Vacuum at least periodically.
• Make sure dirty dishes don’t just sit dirty out in the open for long periods.
• Make sure smelly garbage has a lid over it and is taken out routinely, especially if there’s stuff like meat scraps in it.
• Open the windows on nice days when it’s around room temperature.
• If it’s especially bad for some reason, an air purifier may help.
• Regularly clean your bathroom.
• Keep your fridge organized so stuff is less likely to go bad (or bad stuff gets caught quickly).
• If you have a shoe rack near the door and you want to be really extra, you can once in a while deodorize your shoes. Maybe I’m a freak that I don’t do this.
• Make sure the house isn’t excessively cluttered.

This isn’t all-or-nothing: any of these will help with the odor, and that’s the goal.