Mobile WiFi "hotspots"? Opinions?

[Gawdzilla Sama]

I live in an urban area, so access to AT&T's WiFi network is a given. I'm considering getting a mobile hotspot device, but I'm not sure how often I'd use it. Anybody want to share experience(s) with this?

[Anomalocaris]

I live in an urban area, so access to AT&T's WiFi network is a given. I'm considering getting a mobile hotspot device, but I'm not sure how often I'd use it. Anybody want to share experience(s) with this?

I only ever use the hotspot on my phone if I need to log into work network on my laptop when I am out in the middle of nowhere. Happens maybe once every few month.

[Abaddon_ire]

I live in an urban area, so access to AT&T's WiFi network is a given. I'm considering getting a mobile hotspot device, but I'm not sure how often I'd use it. Anybody want to share experience(s) with this?

My plan is an unlimited data plan, so I use my phone as a hotspot for my kids extensively, (if we are away from the home wifi)

I have regularly exceeded the "fair usage" limits with no penalty. Signal blackspots are the only thing that seems to bork it.

[FlatAssembler]

The cellular Internet network (powered here by the Croatian T-COM ISP) appears to be faster on weekends, and generally more reliable, than the Internet connection provided by the Croatian Crisis Connection ISP.
The T-COM ISP, though, offers only limited bandwidth, if I pass the limit of 2000 MB, I need to pay 50 cents per every additional MB.
That has never happened to me, and I often use it. Especially on the weekends. On the Croatian Crisis Connection ISP, during the weekends, you are happy if you get a connection to the Internet (not a "connection timed out" or "server not found" to any website you try to connect to) at all, and you never get the promised 8 mbps speed. The T-COM ISP promises only 1.5 mbps, yet, during the weekends, it's usually significantly faster than the Crisis Connection ISP. 1.5 mbps appears to be good enough for everything except watching YouTube videos. You can only watch YouTube videos in the 144px quality, and quite a few YouTube videos don't offer that.