I just bought Cubic last week, there was a half price offer at the time. After using it quite heavily for C development over the past 4 days, I have to admit this software is an absoloute must have for any Amiga based software development. Kicking myself for not buying it years ago.
There's a free demo available from the website to try it.
Has outstanding support for C, assembly, HTML, AmigaGuide, ARexx and a host of other text filetypes.
Almost every aspect of it is highly configurable, and Dietmar's email support is fast and helpful.
The only negative is that the written documentation is quite lacking in many areas, but there's nothing you can't quickly figure out yourself, or ask Dietmar in an email.
Even at full price this package is worth every cent. And if Germany takes the cup, then it might as well be a giveaway!