Re: Lubuntu impressions
Glad it's working for you. Lubuntu is know for it's small foot print and IMHO is a great choice for older systems.
Not sure what "heavy stuff" you eluding to, unless it's propitiatory games or specific apps that you require for a certain task. I've been able to find Linux apps that (for the most part) accomplish all the necessary tasks I performed in Windows. But I'm not a gamer, or a video editor - nor do I need AutoCad any longer.
Good Luck & Enjoy
"All change is not growth, as all movement is not forward."