If you are planning on doing medicine, not sure if you need spec, maybe biology would be better lol. However if you enjoy math, then man do I recommend spec. probably the 3 biggest perks of spec are its scaling (I think one year it was like 13-14), its content (way different way of learning an super fun) and the style of working. If you just memorize working out or learn formulas, u will suck. Sorry but spec is Math, and some of it is about as Math as you can get. If you don't understand, and I mean really get your head around the theory of why certain formulas work, then you r gonna struggle with certain topics. Theory is pretty important. However the third, and in my opinion the best perk is the solutions, and that is that their kinda are not any. Even on the exam (only if it is ambiguous), it will just give you a problem and you may solve it any way you wish, if you have a geometry problem, and you recreate it as a set of equations on a graph and solve it like that, you can get full marks! Creativity is encouraged and many problems are at your whim to choose which mathematical tool you will select to solve it, algebra, circle theroms, geometry in the plane, trig, the possibilities are endless! Also difficulty is exaggerated, it covers a fair chunk of methods and general and is mostly just new stuff that gets people. Enjoy!