I think this swaddle blanket is a great idea. We purchased this for our third baby when she was a month old. She was a tad small (early) and still is, weighing under 8lbs to 9lbs 5oz during our Zen Swaddler use thus far. The blanket is made of fabulous fabric, lovely design, and weights are as shown and explained.
I love the velcro location and strength and that it came with velcro covers (paired strips). Maybe that was for packaging and shipping, but they're great for washing as it keeps the swaddle blanket and other items safe (my non-Zen modern swaddlers do not have this velcro cover, must be velcroed to themselves and washed in fine mesh bags, and still manage to attack other laundry and themselves to cause minor damage).
As we're experienced in traditional swaddling, she has room to grow into this blanket a bit, and I don't want to have the velcro sounds disturb her during nighttime changes or adjustments, we just keep the velcro covers on (don't use the velcro for swaddling at this time).
Since she's small, and the fabric is stretchy, it wraps around her for a very secure swaddling solution (even without the velcro). She's a pretty calm baby and sleeps well, but does (as she should) prefer to be held and cuddled to sleep. She seems to enjoy being cuddled by the Classic Zen Swaddle blanket for nap times and bedtime.