Is $200 a fair price for drain/pipe cleanse/fill?

New hot tub owner after moving into a place in the summer that had one. This is a beachcomber model from 2018 that appears to be in great working condition but I’m a total noob to this.

We paid someone $75 to help us open it in the fall as it was the first time we’d done so. It’s been 5-6 months and we’re looking to drain & refill and were quoted at it being a 2 hour job for $100/hr, excluding any chemicals/supplies).

Is that a fair price?

How critical is pipe cleansing? We don’t have any kind of maintenance history