The A20m is a solidly built machine, and with its 14-inch it was a pleasure to use it although it was rather heavy (around 2.8kg) to lug around.
I bought it second-hand (probably more like 12th-hand) for around £300, a bit of war horse, the keys were heavily worn, but still the keyboard was excellent in use.
It came with a very basic Windows install and no drivers or support software, but even now, years later the IBM website still has all the drivers you might need.
Adding more RAM and a larger, quieter hard drive were easy thanks to the IBM's highly modular design.
The inverter went shortly after purchase, meaning the screen became visible only intermittently. This was incredibly frustrating but was readily fixed. After which it went on to give another 4 years service before finally packing in completely.
"Upgrading" to WinME is probably never a good idea for any computer but caused no end of problems. I was pleasantly surprised that the laptop could easily handle the move to Windows XP and became far more stable as a result.
There was no built-in wireless card, but it worked well with a plug-in card.
The battery life was initially good, at around 3 hours, but the batteries themselves quickly degraded, becoming practically useless after a year or so (giving about 15 minutes of use).
The wife used this a lot for her course work, particularly in the garden on sunny days and enjoyed it.
A well-supported laptop with a modular, robust design let down only by its poor battery performance.