You need to decide how much is your time worth when it comes to all of the activities related to selling your home. Today's market is not one where you can throw your home out of the MLS and expect that it will sell in a week. Marketing and knowing where to market your particular property is key.
If you are buying from an owner who has their home listed for sale with a limited service agency how do you know whether the price listed is the right price? Do you know how to protect yourself with various contract terms?
You can find plenty of agents who will work with you as either a seller or buyer in ways that might surprise you that won't leave you hanging with a flat fee brokerage or an unrepresented buyer.
If you can honestly answer that you are fully capable of handling all of these things, and a few more I overlooked, then maybe a flat fee MLS listing is for you.
However, making a mistake in real estate can be very expensive. That is why agents carry Errors & Ommissions insurance, even though most of us do this full time and conduct multiple settlements a year.
If getting into the MLS were the holy grail to a successful sale, we would never have any listings expire, but they happen every day because an MLS listing doesn't guarantee a sale. Right now there 251 active listings in Chantilly in the MLS... how will you make yours stand out
I used to offer flat fee MLS.. but then I got good.
Read about my inside scoop on Flat Fee MLS. The blog post is called:
Go FSBO! Save $20,000! Agent Tells All!
I suggest that you discuss your options with a local Realtor. Ask for an "estimate of seller's net proceeds". It may be that the difference between a Flat Fee Realtor and a full service Realtor might surprise you!
Also, at least in my area, the "less than full service" brokers have a much higher "expiration rate", meaning that compared to full service Realtors, "limited service" brokers' listing fail to sell most of the time.