Let enlight ourself on the advantages and disadvantages of sharia law. reasonable comment pls.

I studied Islamic law a.k.a shariah law as a 3rd year law student...and its really not as bad as pple (especially fellow christians) make it appear.
The advantages are MANY! As regards Islamic banking and business laws, shariah law forbids the charging of interest on any loan or the addition of excess profit in business. This helps the society to be fair and just, and lessens d chances of d rich getting richer at the pauper's expense.
Secondly, in sale of goods, Shariah law also prevents the sale of unwholesome or forbidden goods. For example, any transaction involving d illegal sale of weapons, pornographic materials, and animals forbidden in islam is voided by the shariah court.
Again, shariah law equally consists of sayings of the prophet mohammed, which are really just and fair as well as morally formidable. Nevertheless, it is natural that all things have disadvantages, and d particular area I find bankrupt in shariah law is the shariah/islamic criminal law. Personally, I believe its REALLY strict, but do not forget that this is also a means to deter criminals in a sane society. I hope this helps!