I submitted my file for immigration through WWICS 1 year ago and during this period they have been so professional in the whole process till geting you visa granted
They were responding quickly to my calls and emails, giving right advices and making good review for the documents before submission to ensure getting approval
I have couple of friends who hired other agents in Qatar for immigration, they delayed their work and got rejected due to bad advices from agents
Strongly recommend WWICS as they have International experience in this field

Good luck