Hope it's not too late for an update. Since my last post, three things happened.
1. The Windows tablet fell and broke. It had been a freebie, so I wasn't heartbroken, but I was convinced that a tablet is useful.
2. I bought a Lenovo Tab P11 tablet, which was an inexpensive 11" Android tablet, and have been using it for more than a year.
3. I just got a 13" iPad Air as a gift from my employer for good behavior.
The Hercules holder won't safely hold the 13" iPad, when the iPad is in a case, which I recommend. So I got a König & Meyer 19766 tablet holder. I ordered it from Amazon, but it came from
Sweetwater. It's nice and secure, and threads directly onto a standard mic stand.
Here's the case I got for the iPad, recommended by my son:
Since I've now used a number of different technologies, I'll share my opinions. I'm now convinced that the big iPad with Apple Pencil and ForScore app is the gold standard for the classical musicians (including music students), for good reason. My kids are both professional classical players, and "you can observe a lot by just watching." This is the only setup that I see at classical performances. Aside from the iPad being big enough to read their dense charts, the Apple Pencil is superior to anything for any other platform. And the classical charts get covered with markings, from what I've seen.
But for a lot of other kinds of work, a smaller, cheaper tablet, can be just fine. There are smaller iPads. You don't need a 13" screen for iRealPro, or even for real book charts if you're only reading the chord symbols. There is a drawback to the size and cost of the Apple.
I have seen three tablets get destroyed at gigs. The classical players are a lot more careful with their gear, but stuff gets knocked around at jazz gigs, and I'm usually focused on protecting my instrument, not my "gear". The Lenovo tablet is still a bargain.