I purchased a Maverick ET-73 and it stopped working after using it twice. I guess that would explain to me why they felt a need to redesign it. IF they were a stand up company, they would offer some sort of adjustment or credit for us holding defective units. I would really like to purchase one of their newer units, but refuse to do so until they give me good reason. ThermoWorks could have this market if they want to, and my hope they will someday release a product to compete. I expect after this post you will see a lot of people that will give Maverick glowing reviews.
Good Luck on whatever you decide,