Motorola Trbo networks have worked well on the west coast. Many municipalities have been using these radios, mostly XPR6550 handheld and XPR4550 mobiles. VHF is knocked down in the trees here, so UHF is also used.
The GPS feature has been a great advantage along with software for monitoring radios in the field. One oil company uses them to track their small vessels near a maritime terminal as well.
One issue here though was when several areas wanted to use Motorola Trbo radios on a Zetron MAX Dispatch system, which is not compatible at all. Zetron is local to some of the police and fire departments that had switched to Trbo radios, now they use APX radios instead, which sent the price considerably higher. They had upgraded Zetron gear before some of the radios, then found out compatibility issues. Just warning to make sure your radio choice is compatible with other items used before spending the money.