If you're in an area that has highly trained technicians to support the Mitel MiCollab product - I think your experience will likely be much better than ours. In my opinion, Frontier (and Integra before them) were the worst, and we do not look back on that experience with much happiness.
I think this service works very well for me, but I have been a Verizon customer for almost 15 years. If you are someone who hops carriers it may not be the best fit. I also like that you can easily use it with all of your employees regardless if they prefer Android or Apple phones. (Whereas using Apple's or Google's services may not work seamlessly for all phones.) I think it still has room for improvement, and sometimes I worry about the longevity of utilization due to the nature of cell phone carriers constantly changing prices, plans, and every option under the sun to make a buck that we could be very screwed in the future if Verizon does something stupid (because historically, they all have)
The home screen shows a little bit of everything, but being a control freak, I would like to be able to customize it. (Granted, it would most likely have most of the same elements, but, for example, I don't need photos scrolling across the top. I'd rather have buttons like quick links to jump directly to what I want or to see a further bird's eye view of the content.
I like receiving notifications that a back-up is complete, but I would like to be able to set what other notifications are and aren't allowed to push to my phone.
I have set Verizon Cloud to back up on wifi OR using the data network. But if you are using wifi while doing a content restore and you lose that connection, either by leaving the building or the local wifi dropping out momentarily, the entire content restore will stop and need to be restarted. This can be very frustrating.
It is easy to you for existig Mitel UC users, who are familiar with the Mitel way of things, but for green field enterprises, might be a ramp up period which in most cases would not be worth it as its competitor TEAMS is much easier and intuity to use.
Initially, support from Mitel was fantastic, but recently it has started to lag significantly. Response takes 8 hours, at a minimum, usually requiring a second call to spur a response. Email support is even worse (email in a ticket) - I have had to call in to get things running the 3 times I've tried to email support.
MiCollab was great as a VOIP solution and general team collaboration solution, but it lacked in some areas, such as the mobile app, complex configuration and set up as well as the lack of user customization. Overall, the system is serviceable, but seemed rather vanilla compared to its competitors
All of the others provide more free storage. Verizon should out best or at least equal the best when you are already a Verizon data subscriber. It seems that by not doing this that they want to "nickle-and-dime" their already loyal customer base
This product was competitively priced when originally purchased. We will need to evaluate whether to replace it when it approaches the end of life or simply upgrade it.
Users typically only use the phone system because the collaboration tools have been superseded in functionality by other tools.
Thus far is has been a positive experience, and has saved a lot of man hours of both employees who replaced their phones to the IT department trying to help them put everything back no longer needs to go through a lengthy process.
The cost of this option is a bit higher than I'd like. I think Verizon is a little too proud of a product that every company is now starting to offer.
There is a free version with limited space, so at least trying it out to see how it will fit with your needs isn't much of a risk.