I'd caution you not to get your expectations too high...
... Let's keep one foot firmly planted in reality.
We've alread surmised elsewhere on this board, using various assumptions etc, that they may need 20,000 to 30,000 customers to consume their full potential capacity... And they have to grow into that kind of output (literally!)
I wouldn't expect them to have signed up more than a thousand or two within the first few months... It may take them a couple of years to ramp up completely.
If I'm wrong, great, I'd rather be pleasantly surprised. I will temper my expectations and in time I won't be disappointed.
Again, my interpretation from the interviews and news releases wasn't that they were exceeding their expectations on overall sales, but that sales per patient were ahead of their conservative estimates. Time will tell!