Yeah I have used it quite a bit in the past. I consider it a pretty "safe" protein powder, as in it won't really mess with my gut (no creatine), and it's made by a proven, mainstream manufacturer. I used to use it in conjunction with Musashi 92, depending on the time of day or if it coincided with my workout. The Bulk has carbs, so it's better for pre or immediately post workout, while the 92 has very few carbs so it's better as a supp before bed, in the morning if you know you're having carbs for breakfast, or just as an in-between-meals protein shot.
You can definitely get both of those cheaper online rather than through the shops.