cool cafe racer
my opinion is that they are decent when used with the right diet/ workout routine.
i myself have used hydroxycut and oxyelite pro. i have also used animal cuts (wouldn't really label it just a thermogenic)
hydroxy cut honestly was shit don't fucking buy it
oxy elite pro was pretty good, shed some weight when i was cutting about 6lbs
honestly just get a ECA stack (bronkaid,caffiene,aspirin)
it works 10X better then any of those i am sure
alot cheaper too