Very bad. The app won't let me register an account for my Visa Platinum card. I contacted their customer service and got a copy-paste reply telling me to try the password again if I couldn't log in. This was not what I had asked for. When I mentioned that this was not what I was asking about, they stopped replying to my emails.
I suggest you do not apply for a card that works with Loungekey as you may end up like me without access. Thankfully there are alternatives.
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