It's fantastic for folks who have conference calls with folks outside your organization throughout the day. It does not have a video option though, so if you need that, look elsewhere. After each call, I get an email "receipt" which shows the length of the call and all participants.
We use Microsoft Teams Rooms across all of our main conference suites. This ensure our staff have consistent meeting experiences in out part of the education sector - meetings generally become hybrid fairly frequently and can even extend to pupils or staff working from home. We did try some of the poly equipment in a classroom environment but due to noise levels and the amount of pupils and staff it quickly became a non starter. We were advised to stick with participant numbers aligned to our purchased hardware before we tried this.
Camera view selection is a nice feature which allows remote users to choose the camera feedback to select for better experience.
Live reactions like hand claps, thumbs up, raised hands,etc can be used to indicate to presenters that a meeting attendee has a question. This is cool.
We can connect our laptop seamlessly to the Microsoft Teams Rooms to share our content or presentation which makes things very simple.
Microsoft Teams Rooms has been very useful for our small business. As mentioned, it has allowed us to connect with our team more regularly, share important information, and keep productivity up by allowing our team to get on remotely and not have to commute to be together in person.
Loopup is a cheaper alternative than GoToMeeting. You do sacrifice some of the features, but for most staff requiring a dial in and screen sharing it does the job. If cost reduction is at the forefront, you may want to look more seriously at LoopUp as a screen sharing tool.
I consider MTR better because it first allows integration with all the Microsoft apps and is more cost-effective, considering all the included services such as the Office app, Cloud Storage, and email.