Not sure of the real utility of watch-only wallets, but I tend to agree with this fair (and good) review.
I confirm that Unstoppable is quite good and pleasant to use (probably one of the best multi-coins wallets right now). Electrum is a sure bet (very solid wallet) but true, the aged interface starts to be annoying. Not a big fan of Bluewallet in terms of UI, that I find sometimes a bit confusing.