Gave it a try but it seems like it's sort of a "work in progress". Their current version seemed okay, but then I tried what I guess is a beta version, and some

Gave it a try but it seems like it's sort of a "work in progress". Their current version seemed okay, but then I tried what I guess is a beta version, and somehow two accounts I'd never entered showed up in my dashboard (a savings account and some other account). So either some test data somehow appeared in my dashboard, or someone else's account info leaked. Also -- it worked in Safari (Mac) for some screens, but then threw an error on the screen and suggested I use Chrome. Have you found that it's really ready for reliable usage? Feels very "beta-ish".