This site only wants your money... they don't care about the people who play on this site... that is so obvious... customer service is so poor, long term people are leaving this site all the time

It all depends upon what is your budget.
Some are cheap and some are expensive, but, if you have enough coins or gems you can buy them, yet the real cheap ones one would not want to wear them going to parties there.
In parties there one can make a lot of charms, but, then there are many reports, than the upper level parties are very biased.(I can write a whole chapter on that).
But, 5 or 10 gems on that site is like a grain of sugar per pound.