I wanted to use this fragrance for a reasonable length of time before sharing my thoughts on it, as we all know that in the first week or so of using a new fragrance, it's much more noticeable as our noses aren't familiar with it. However, even now, after using the scent 2/3 times a week for 6 weeks or so, I still notice pleasant little wafts of it all throughout the day. So, in terms of lasting power - I'd give it a very high rating. It certainly doesn't wear off, and speaking for my nose personally - it hasn't become overfamiliar and boring. I also really like the simplistic, elegant bottle. The smaller bottle in particular (the one I purchased) is perfectly sized for popping in even a small handbag.
Overall, I'm impressed with the product. Jo Malone is a brand I really like - I already own a couple of their candles, which impressed me equally in terms of how far the scent travelled through my house and then lingered afterwards. So, the 'colognes' certainly haven't disappointed me.
If you're thinking of picking a fragrance up for yourself, I'd really recommend you go and have a sniffing session of your own and pick your favourite!