We have found LSWS to be a very effective tool for customers with highly trafficked websites. The immediate boost in performance can be felt even before tweaking the configuration for LSWS. Once fully configured, LSWS lives up to its expectations and provides a noticeable performance boost without requiring additional hardware purchases from the customer.
Coupled with the cPanel plugin that allows seamless integration with WHM, it makes for a very easy product to deploy for customers when they need the extra speed or to handle larger amounts of traffic. With the stability of LSWS, we know that every time we recommend the product that it will be stable and perform as intended for our customers.