>>2893397Plustek 35mm scanners give good results and are pretty simple to use, I bought a used 7400 for $100 and it does a pretty good job. I wouldn't recommend a flatbed for 35mm, dedicated film scanners give much better results than flatbeds do and you need all the resolution you can get for scanning small film. If you already own a digital camera and a macro lens then you could DSLR scan if you want but it's going to be a pain in the ass to set it up properly to get good results.
I think pic related is a pretty good sample of what you can expect out of the scanner with a fine grain film and a sharp lens.