For some reason, the Machzorim around the High Holidays are much older (they only get used once a year, so why shouldn't they be kept in rotation for half a century?) and they are not formatted in a user friendly way.
This book is formatted in a wonderful way and it is very easy to follow. It makes the service a delight to attend (insofar as a service that goes on for 9 hours can be enjoyed).
Verdict: Strongly recommended for the price. Especially the secondhand price.
Artscroll produces the highest of quality materials. The depth of the prayers for all the services is great. The commentary on various aspects is invaluable. I don't have experience many other machzor's but cannot imagine any others being better than what is offered herein.