I wanted to resurrect this thread to give a bit of an update and pass along what I've found over the last 10ish months.
I've kept at studying Japanese pretty steadily this year, getting in at least a bit of time each day. I've tried a few different methods and think I have finally found a routine that works well for me. Currently, I'm working through the Genki book at least a bit each day, as well as checking in with the Duolingo app on my phone every single day for between 15 minutes and an hour, depending on how much time I have. I've also supplemented this by watching live-action Japanese shows nearly every day just to have more exposure to the language and how different people speak it.
Here are the materials I've used and my thoughts on each:
Japanese Hiragana & Katakana for Beginners: First Steps to Mastering the Japanese Writing System - This is also known as the "Tuttle" book. This was an invaluable first step for me, and helped me memorize both Hiragana and Katakana quite quickly. It emphasizes stroke order and gives really good tips for memorization by using pictures to associate with each character. In addition, this book provides some vocabulary, as well as some very basic grammar and Japanese reading/writing information. I highly recommend starting with this book.
Hiragana Pixel Party - I mentioned this app previously, but it's a great supplement to the Tuttle book as you're looking to memorize Hiragana. The chiptunes are great, and it's a fun way to learn how to quickly recall Hiragana characters. The app is free up to a certain level, but I bought the whole package because I found it so helpful and fun.
Rosetta Stone - I got a crazy deal on this through my work, and I really couldn't pass it up at the price. That said, I've had mixed results. I get why they immerse you completely into the language, without any English guidance. However, because of this, I found myself not understanding
why things are written/spoken a certain way. It doesn't do a good job of explaining, "Hey, in these situations you say or write
this, while in others you write
this." It causes a lot of frustration, so I've decided to pull back on this for a bit, until I get more of a handle on things. Which leads me to...
GENKI I: An Integrated Course in Elementary Japanese 2nd edition - I love this book and read it every day. I actually just got it a week ago and it's already done so much more for me than Rosetta Stone ever did. Yes, there's English in the book (seems to taper off the further you go), but it does a great job of giving me the explanations I was looking for in Rosetta Stone. And now that I can read Hiragana/Katakana fairly easily, I'm getting so much out of it.
Genki: An Integrated Course in Elementary Japanese Workbook I - This is a companion to the Genki textbook, and also highly recommended. I can't say enough good things about this series.
Duolingo - I love this app and, like I said above, use it daily. It has some flaws, sure. But for daily practice it's really nice. And it's free! The app sorta "gamifies" learning, earning you EXP, in-game currency, counting your daily streaks, etc. I wouldn't recommend using it on its own, but it's a nice supplement and a good way to keep yourself at it on a daily basis.
Future planning...
I plan to keep plowing through Genki, and eventually grab Book 2. Also, as I get more into Kanji, I plan on picking up the Tuttle Kanji Guide, since I had such a good experience with the Hiragana/Katakana Guide. Eventually, I'll pick up Rosetta Stone again because it's good for listening and speaking.
So that's it. How about you guys? Any experience you'd like to share? Recommendations?