The apps is convenient even if some fonctions are not supported and need to return to their website from time to time. Claim process, customer support and billing service is a mess. Trying to get a refund on their mistake is almost impossible or required a lot of interaction. Navigate between, customer service, billing, claim, accounting is a nightmare. We have lost a lot of money on double charge.
Their pricing is good so eventually you recoup your lost. Never allow them to billed you automatically, make sure you double check everything before you pay. That is my advice.