Lovely Katie. Next time I see you, I must give you some kaffir lime leaves so that you can try that version. My little bush has grown really well and has plenty of leaves now.
Anything that saves you having to go to a specialty shop is worth having GF. I don't use kaffir lime leaves often but it is so handy to be able to walk out to the garden and pick nice, fresh ones - the outlay is definitely worth it. I doubt I would need 2, let alone 3