This is a common question - and a good one. However, it's not an easy one to answer! If a passenger has had two delays in the last three years, went to a claims company, won twice and got paid within weeks each time, then they may say absolutely! But if a passenger doesn't win, or a claim takes 12 months, goes to court and a larger chunk of compensation is taken by the company, they may feel differently.
Millions of passengers have used these companies and it's a thriving industry, so there has to be some benefit. Some may simply not have the time or will to fight for their claim themselves and would rather someone else take on the burden for a fee.
We vet all businesses listed on our site, so we can confirm that they are all legitimate companies, with a proven track record and we try to give their Trustpilot score and a link to their Trustpilot page so you can see what previous clients' experiences are.