SEC as long as you know what you are doing.
If you go for SEC get the two addons themes and static pages (the rest is not nursery imho) without these two addones SEC is useless, also get Slurl (for SEO urls) and all day sucker (a super pinger)
When you use SEC don't use scraped content because your but will be banned, i make my own content with simple tools that can be fund here but the way i do it is not for everyone because it is a view hours of boring work but you can be sure the SE will not find you.
Some tips:
1 Always make your own content.
2 use images in your templates
3 use links to authority sites in your niche (i always use wiki and about us)
4 Make it look like a real website but with highly SEO content.
5 Dont build websites that are bigger then 1K pages. (1K of good SEO optimized pages are better ten 100K crap pages)
If you really put in the work you can have a lot a fun with SEC, i have some SEC sites running over 6 months now with 300/400 pages indexed and giving me a nice stream of traffic but you have to put in the time and effort.