With that said staging is always a great thing to do, when people come out of their homes to come to your open house they expect the seller to have a very clean and decorated home. Remember that to stage you can find very inexpensive items so don't over do it, keep colors neutral, simple items like simple artwork on the walls, vases with flowers in the middle of the tables, make sure floors are done whether carpet or wood, towels and new shower curtains and accessories for the bath. Outside make sure you have a nice main door, house numbers are visible, your lawn is done, the garbage is in the cans and closed, some flowers and do any other touch ups.
I get very excited about answering these questions, sometimes I go on and on.
Buyers want value. Doesn't matter what you do, if they do not perceive value, the property will not be shown. A will-priced property, staged correctly, will get the seller the highest price possible.
Professional stager are a help if that is not your area of expertise.
For me, I do it myself. Nothing too fancy. Cost = FREE. Some professional help is needed with some homes. If the property is neat, clean and the price within the FMV, then this is one step I avoid.
Our job is to get the highest and best value for the client. Try going it alone first if the seller is not in too much of a hurry. And if they are, remind of the current market conditions.