So, eh, yeah. Basically useless as a laptop.
Is the "Conclusion: Highly recommended" at the end sarcasm?
I use the top half of a Helix 2 with a Thinkpad Tablet 2 Bluetooth Keyboard because I'm one of the three people in the world who actively likes the optical trackpoint.
If you almost always use the machine on a desk rather than literally on your lap (for which I use the same keyboard paired with an 8" tablet) it's not even -much- additional hassle.
So maybe it wouldn't work for you, but "basically useless" is silly.
Most laptops IME mostly get used on a desk whether with additional paraphernalia or not; 'laptop' gets used to describe the class of machine more than whether it's touching your legs or not.
If you meant literal in-lap use it probably would've been better to specify it, and if you didn't mean 'useless' entirely it would probably have been worth clarifying that since your questioning whether the recommendation was sarcasm rather suggested you -did- mean useless entirely.
Language is a pain, sadly, but I don't think lojban is going to win any time soon.