Shure PSM 300 T11

The first impression is that this one is not in the same league as the new digital transmitters such as the GLXD24.
It feels cheaper and it doesn't have that many features, for example how much battery there is left (the battery died at one of my gigs), or rechargeable battery.
The receiver is plastic and the antenna is thin and long-ish, so can get in the way if the unit is not placed properly.
Sound-wise it is descent but not superb. There is quite a bit of headroom but it feels that it lacks a bit of bass (I'm a bassist/backing vocalist) and very high end and there is a bit of hiss. However, the sound is pretty clear and consistent.
What I like in comparison to the newer line (GLXD24) is that it is fully racked. 2 units can be installed in one 1u space.
Overall, I'm not dissatisfied with this product but if I was to buy again I would choose something with better receiver design and battery features