Hi there. Laser hair removal is a very effective treatment if you are wise and choose a clinic that has the latest laser technology and also use it properly as opposed to rushing you in and out of your sessions without actually performing the treatment as it should be done. You usually need 6-8 sessions spaced at regular intervals and thereafter, you should see a dramatic reduction in hair (it is never 100 % hair removal) as there are always hairs which escape the laser . Unless you have any hormonal changes the hair shouldn't come back but realistically you need to continue with maintenance sessions at least 2-3 times a year.
You should see good results with the ndyag laser although that laser is ually used for very dark skin types and not light skin like yours. also be prepared to be put through pain (especially on your bikini.. yikes) have you looked into other lasers like the soprano xli which is one of the best lasers out there and is virtually Pain Free. Results are excellent with soprano and it feels like a hot massage.
You can read some of the reviews on Pulse Laser Clinic wahanda page or visit http://www.pulse-clinic.co.uk