The service Appli gives is worth loads (far more than they charge) because it'll boost your odds of getting in for medicine by more than basically anything else. They give you a booklet which has all your odds of getting in everywhere and which has loads of helpful advice. They answered any questions I had about it almost instantaneously and were really helpful. The advice Appli gives is really good and will help you make an informed choice. No one else seems to be able to give advice this good and this evidence-based. It boosts your odds way more than anything else you could do.