I find your review of Magic or Madness interesting because I read the entire trilogy about a year ago. I agree with your review of the first book and I would like to point out some problems with the next two books.
1. I found that the author grew very condescending towards J.T. and Tom. It was good that they weren't Mary Sues, but I found the condescension very irritating by the end of the trilogy.
2. If you found Reason's passivity annoying in the first book, you'll find the second book really annoying. It takes until the third book for Reason to act.
3. There is one major plot point in the second book that any experienced reader of fantasy will be able to spot a mile away, but it takes the characters almost the entire book for them to figure out. When the epiphany finally came, it seemed like a case of genre blindness and plot-induced stupidity
On the other hand, the trilogy had an excellent climax and an excellent final chapter. The climax was satisfying without being sappy and the ending made it clear that that the characters would have lives after the ending.
In short, the Magic or Madness trilogy is well worth reading all the way through, but it's just okay, not great.
1) Ugh. I really don't like it when authors treat secondary characters as only satellites of the hero/ine- especially when J. T. and Tom both seem to have a much wider set of interests than Reason does.
2) Is the passivity because she doesn't know things the readers know? If it is, I really don't know if I can read the next two.
3) Ugh, again. The problems with Reason's blindness I had in the first book seem to be magnified.
I found Magic or Madness used. I might read the other two if I similarly find them used; I'm just not going to be in a hurry to find them.
1. While Reason gets smarter, J.T. and Tom seem to get more stupid. There's one 'romance' scene in Book 3 where I cringed and felt like yelling at the author "I think that they're smart enough not to do this!"
2. Reason's passivity is not because she doesn't know things that the reader doesn't know. It's because she's being led by a guardian spirit, which I still found irritating.
3. It's not just Reason who's blind. Everyone else suffers from genre blindess and plot-induced stupidity on this one plot point, too (Even Esmeralda, who you would think would know better)
Just buy them used. The climax and ending are good, but it requires a lot of patience to get there. I would suggest not reading the second book until you can get a copy of the third book. Reading the third book right after the second book makes it a lot more tolerable.