Wich cointracker would you recommend and why?

Im looking for a trustworthy cointracker and am interested in your opinion.

On Metamask there are currently Crypto Tax Calculator, ZenLedger, CoinTracker, Koinly and CoinLedger advertised but I can tell them hardly apart. First concerns are -as always- security, reliablity and trustworthiness.

Hints on possible flaws, scandals but also particular benefitial tools or reputation are much appreciated. Maybe you do have a clue on how those services treat the information they demand from a connected wallet as I am planning to engage in a 'free trial' for the beginning.