Is this a good sleeping bag for a beginner?

Outer Limits Heaphy -10 Sleeping Bag http://www.bivouac.co.nz/outer-limits-10-heaphy.html I'm looking for a sleeping bag that I can take on tramps year round throughout the South Island (though not too high up in the mountains during winter). Price is also a very important factor, as is the weight. At 1800g its relatively heavy, but at < $100 it's cheap. Bearing in mind that: - I don't want to buy a bag and six months later decide I want a better one - On departure, I'm only going to be comfortable carrying at maximum 10kg (not including the weight of the pack) - I would mostly be doing 2-3 days tramps, generally nothing longer. With that in mind, do you think this bag would be a good purchase? If not, are there any bags in the < $200 range (approximately) that you would recommend? Thanks in advance.