It's nice to have, as it does act as a counterpart to the default generator for RTP assets. However, I wouldn't get the DS+ specifically for it... as a total package or add-on to the DS resources though it's great.
For tips, a few things that are easily ignored but so important particularly when you have few or no projects under your belt... start simple and be patient with yourself and your ideas. As with so many things, game creation is a skill that takes time and effort, and can be...
Some people have too strong of an opinion about what maker is the best, I've seen discussions like:
- I prefer VXAce because I like the style of the RTP better than the older releases
- You're worse than Hitler
My number one take away from this game jam is to make small games that are as polished and bug free as possible. Far less dev time, and if the game flops, it matters less because my time investment is much lower. Also, whatever ambitions I have... aim for about 10% of them. They are clearly too high, and will involve stuff that likely won't matter.