I have been researching about BS'es in Malaysia and found numerous constructive advices from fellow BTBs. Collectively, you will be able to filter out the non-appealing ones and focus on the aspects you care about the most. Hereby I give you the research outcome and two cents worth of my review (References).
1♥ : horrendous
2♥ : barely making it
3♥ : average - nothing to shout about
4♥ : better than average, special in certain ways
5♥ : good overall
6♥ : EXCELLENTE!!
For pricing, refer to (Price list)