Spear and Jackson are generally associated with very good quality garden products & tools, and this bow saw is no exception.
The plus points:
1. It's got a very comfortable grip, meaning your hand doesn't get battered during spells of repeated sawing.
2. It is indeed razor sharp, much like its name suggests. Treat it well and it will stay that way
3. It's decent value for money - far cheaper here on Amazon than it would be in in other well known chains.
The minus points:
1. There aren't really any, except to say this is quite large, so if you are planning on working in limited space, get the smaller option