I know Karina Allam as an experienced Maths tutor. She was recommended to me by my friends whose children she taught.
Karina tutored my son for 13+ entry to Haberdashers' Boys' school and he was admitted to the school. Later she also helped him with difficult topics of A-level and Further Maths.
I would certainly recommend Karina as a patient and knowledgeable tutor who is very well familiar with a variety of GCSE and A-level syllabuses.
Dr Leonid Petrov