It is wise to start with platinum and then go for dimond if you want to
New player diamond membership worth it?

If you do so though, bear in mind that you will miss out on some awfully fun ads.
Like the ones for those other sites that really will improve your chess??

I'd say it depends on your financial situation. If to you €100 is quite a lot of cash, then you may want to start with a short term platinum or something until you work out if chess is really what you enjoy doing and the features are what you expect.
If, on the other hand, you are unlikely to really miss the $100, then I'd say just go all out for the diamond. Besides, you get a free 30 day trial. You can tell in that time if you are likely to use it enough to warrant spending that sort of money. It works out to pennies a day.

@ Conman89
If you don't buy membership, they'll offer you a free 10 day trial diamond membership.
Try it, and if you like it, buy it.

Ah, I stand corrected. It is 10 days.
They do offer a thirty day money back guarantee. Some may misconstrue that as a thirty day trial.

By all means get it. You will not regret it. And you will make the best investment there is for anyone who is serious about about chess.

It's worth every penny. All the play, all the videos, chess mentor, and tactics problems for under 30 cents a day. Think of how many things you buy EVERY DAY. A newspaper? Coffee?
How many of them cost under 30 cents? Go for the diamond.
Well I am using an iPad right now sir I do press quote
then that explains it