Usually to play an instrument it's a bite of expend a lot of money on extras. In an instrument like the viola, strings are a important part of the final sound. But sometimes you need inexpensive strings for a purpose, like a second instrument, studio instrument, or you are just initiating into the playing.
So you will need reliable strings, with no too much pricey. Then thats your strings. I found a nice/price quality sound. Not that good durability, but you get what you payed for.