Congratulations on your business and on making BTC available as a payment option for your customers, if i was a resident in an area i could get my furnitures through paying in BTC, i am surely going to use that merchants services right way. If you run your business in a location where crypto people aren't hard to find, then i am sure with more effort your customer base will larger than 15, good luck.
Gone are the days when using bitcoin as a form of payment is frowned upon because of the potential of loss due to its volatility.
Volatility is still a problem for merchants, and if you read the op well, it is a problem for them too. There are many ways merchants can quickly convert what they receive as payment in BTC into fiat or anything they consider stable, but that is not an issue, what is great for us is that BTC is accepted, adoption is growing and people have more avenues to spend their BTC.