Well, I guess it's my day to sound like an undercover Ibex sales rep…honestly, though, no relation to the company. :)
I can't speak to the men's version, but I have an Ibex Indie hoodie that I received last winter as a warranty replacement. The sleeves on my 3-year-old one had completely unraveled at the cuff, so they sent me a new one–I totally wasn't expecting that; I just wanted to find out if they had a recycle program for worn-out gear! I don't know of many merino manufacturers who guarantee their products, and Ibex has impeccable customer service.
The replacement felt about half a size smaller than my original; it seems like they've moved towards a more athletic/baselayer fit with their Indie line. Exchanged up a size and the cut is great. I've been wearing it regularly since January and have no complaints about durability. All merino tends to be pretty fragile…