I've been going to Curry Zen so much for over a year now. They really have progressed a lot in the past year.
Before, their restaurant was very small but ever since they expanded, it has been very spacious and there is always a seat for you right away unless you are a very large party.
Their service is still amazing as always and nothing says the best customer service than the owner coming out to check on his own customers and asking how everything is. The servers themselves are always very kind and attentive.
They recently also expanded their menu and have more appetizers and desserts now. They also got new toppings to go with their curry. For all you spicy lovers out there, there is a higher level than spicy 10. Me and my friends all tried spicy 100 and it is the spiciest curry you will ever taste. It costs $5 more for spicy 100, however, if you cannot handle it and am unable to finish your food, the owner is nice enough to replace the curry for you for something that you can handle :p Therefore, only try spicy 100 if you're prepared to die!
My favorite toppings to get are sausage, tofu katsu, or vegetables. They also have spam katsu which my boyfriend loves! They also have the best thai tea you will ever taste :D