MetaMask has not performed in a manner that has been beneficial. My reason is because it has not yet delivered on the promises that it had stated prior to install, i.e. it had not delivered on the promise of things. I have been the one doing all of the work while the extension has done nothing further than make ethereum and smart contracts more difficult and complicated. My suggestion is do not make promises that are not fulfilled and to have the extension developer take some amphetamine so that he wakes up and does his job. I like things that actually produce results that I expect of them.
