Educational software has always been an abyss. While in college, my summer internships (early 1980s) were at an educational computer facility. They had a "lab" with a variety of available computers and software for teachers to try out. Virtually all of it was abysmal -- glorified flash cards.
It wasn't much different when my kids were in high school.
Oh man, I played the heck out of that game, but somehow I keep forgetting it existed. (Unlike, say, Myst or Wing Commander.) I think I beat it, but if so I'm suspect it might have involved a lot of trial-and-error regarding math questions I wasn't ready for.
As a parent, I put quite a bit of time into trying to find the huge number of excellent, new edutainment games that must exist since the market’s a ton bigger now and so many kids have access to tablets and such.
I was surprised to find that most of the best ones were remakes of the old ones (Oregon Trail) or weirdly empty and small in scope like the very simplest, early edutainment games (number munchers, say) as in the case of Dragon Box Math. The boom of ambitious, fun, and sometimes weird 90s edutainment the legacy of which I was hoping to find wasn’t there. Really weird.
I think it really depends on how the institution has invested in the stuff. If they have one or more teachers who know and understand what they're doing, or some pretty good software and curriculum already setup it's great.
But if you buy a bunch of computers or whatever and some crap software and don't execute well it's not going to go good.
(Source: like half my family is/was a teacher or school administrator)
It wasn't much different when my kids were in high school.