Class fees range between $20-40 per class depending on the package you signed up with. Their prenatal class seems popular, maybe because there are many young couples living in Punggol. For newbies, I would recommend taking the Basic or Hatha class first to see if you like doing yoga, and comfortable with a no air-con studio or not. All teachers have different way of teaching so you might want to try out different teachers to see which one you like best.
For more info about their classes, teachers, fees and other locations (like Tiong Bahru), you can visit their website here: http://www.yogainc.sg
You can board bus 382W or 382G at Punggol bus terminal. Both buses are on the same route just different directions. 382W is faster and you can alight at the 2nd bus stop but you have to cross the road to the building.
When you reach SAFRA Punggol, it's actually on the "third floor" so you have to take a lift down to first floor or take the stairs on the right side to go down. I personally prefer the lift because the stairs are not sheltered...
Issho Family Restaurant, Jack's Place, Nom La La, Pin Si, Pizza Hut and Siam Thai are already opened. McDonald's will open on 15th May with drive through. My classmate who works there recommended the Thai food restaurant but if you run out of choices, there is always a Waterway Point mall to makan.
Yoga has been helpful to relief my neck and shoulder ache from long hours of drawing, so if you are a victim of long hours of desk work, I highly recommend doing yoga or do some basic stretching at home if you have the self discipline (obviously I don't) :P
Thank you for reading, namaste!