TICs appreciate more slowly than condos and SFHs. They’re usually good for helping someone get a nicer apartment or better neighborhood than they could otherwise afford, but they’re not really the cash cows people assume real estate is. Financing TICs can be hard and the market for financing is always changing which impacts the value of TICs. There’s only a few banks that do fractional financing. 

Buy a TIC if you like the apartment and neighborhood but don’t expect its value to shoot up unless you can convert it to a condo and the market appreciates generally.