Tastes okay, but too citrus-y. I did make it without the egg white, and I think the additional dilution that the egg white would have provided would be helpful.
Aca...daqa...licious! Used Bickfords Lime Cordial and Plantation 3 Star. Used aquafaba and not egg white- this gives it a cleaner crisper foam than creamier egg white which I think works better with rum and lime. A winner.