I switched to this after my son got bored with other programs. What I like about the Evan-Moor format is that it focuses on "spiral review." Instead of doing a whole month on just one sound, it introduces a concept and keeps bringing it back in later weeks. This has helped my son retain information much better.
Evan-Moor Daily Phonics Grade 2 curriculum is a systematic approach to reading development that uses a "daily deep dive" story-like progression to build phonics mastery through 32 weekly units. Amazon.com