The type with an internal and external antenna.

A micro-cell is not an option with wireless internet.

We used one in one of our stores that was in a poor cell reception area. It had to be plugged into the router and placed in a window facing a specified direction and it worked very well.

This is what I have.... https://www.verizonwireless.com/search/vzwSearch?Ntt=Jetpack&nav=Global&lid=sayt&sayt=jet*&N=128 It works great for me...at least as fast as my old AT&T high speed land line and I can take it wherever I go. I can't get the link to work, but it's a Verizon Jetpack mobile hotspot.

working with a hotel right now to install macro cells around their convention space

I just think AT&T should get it right and figure out why cell service sucks in that area as opposed to making us or the hotel pony up money to get better signal.

we use Wilson Amplifiers on the ranch and then att MiFi or whatever for internet after the signal has been boosted
the Wilson will jack up the att in areas of low connectivity
Wilson just came out with a 100,000+ sq ft booster pricy but not knowing your situation may be worth it.
our ranch has limited cell coverage

I used to have something called a "car kit" in my work truck, cost about $700 in 2003 but I could take and make calls almost anywhere in Montana which is about the worst place I ever went to get calls.

I have a Wilson a.k.a. Weboost to boost the signal in a metal building. It takes the signal from 0-1 bars inside to 4-5 bars when you are within 20-25' of the indoor antenna. If I wanted to spend the money, they do make one powerful enough to have the entire 4200s.f. of space at five bars signal.

Verizon, works well.
Went from 0 to 2 bars to 4 or 5 all the time.

Wilson Pro at the house here, for years.

Took cell from 0 bars to 4 bars.

Verison Jetpack hotspot works on it as well.

I can't use the router device, I have wireless internet.

I only need coverage for a 1700 sf house, I will check out Wilson.

I wish I knew how to get them to take care of our entire town - one bar, at best. Six miles out, I get decent coverage - till I get to the ranch (never had good coverage there)
But, c'mon folks - a town of 16,000? Really?

good to know about those wilson amplifiers

I have a Wilson booster in my pickup. I get on average ~2 bars more signal where there is signal. Where there is no signal, there's still no signal. I've got an external hard-wired antenna to pick up the signal and a broadcast antenna inside the truck that allows anyone to use the boosted signal.

Since Montana was mentioned, a place that I really noticed that the booster was working was traveling between Miles City and Billings. Lots of up/down and dropping calls in the bottoms without the booster as I-94 runs along the Yellowstone river bluffs. With the booster, I don't drop those calls.

All with Verizon. Pard's AT&T phone mostly still sucks rocks for coverage even in my truck with the booster.

I have a Wilson. The only problem is the geometry between the receiving antenna outside and the transmitter inside that sends the boosted signal to your phone. They have to be 180* from each other or the signal is attenuated because they interfere with each other. Example: If you point the outside antenna North the inside antenna should face South or the output will interfere with the incoming signal. Best to know where your cell phone tower is located before you shell out $300.

I have a ZBoost cell phone booster. Antenna is on top of house, with a cable leading to the transmitter inside. Works pretty good, although it is limited in range.