We use CLC for our recruitment marketing agency in Dubai - we don't have many clients but they are all very happy with us! I used to work there as well so can give you my thoughts from that perspective too :) As mentioned above it's been great having someone who has worked at this firm before help out when required (and also be available if needed!).
The support team is always helpful which makes life easier especially during busy times of year/ months etc where queries come thick & fast!! Would like more flexible pricing options rather than per month or week basis eghpecially since your services aren’t free anyway (<1k spend would cover an entire monthly service plan). They do offer discounts however these need applying via their website / system first hence not easy just by calling them up directly unless u know how much discount applied already =) It does make sense though given its one-stop shop approach.