Ok, if you want an expert answer here it is. I have been in Real Estate over 20 yrs. Your appliances should all match. Make and color. That is the best for making a sale. Men usually do not care but women notice it right off. If the Condo has many other advantages the appliances can be overlooked. But if there is more condos like yours on the market you want to give yours a step up.
The main way to sell fast is to keep it neet, organized, clean, decorated nicely, and uncluttered. Never move your stuff out as homes sell better when they have furniture and decor.
I buy and sell all the time for investments. Every 3 years I sell the home I live in and move up. I leave all my decor and furniture and pull out only personal items. I live elsewhere during the selling period. That way it can be set up like a model home, clean and always ready to show. If you can not do this live there as little as possible until the sale is made.
Look at other condos like yours for sale and then make yours nicer. You will get the SALE.