I played both episodes and liked them. The first part is very good, although there is sometimes a lack of ideas in some levels.
However, despite the low difficulty, it's a great episode. The same can be said for the second part which I liked more. Although it's a misunderstanding at the beginning of the second part, going on is really great. Sometimes there will be a level that is strange or just doesn't make sense. But Mega Man 3: Complete Works - Snake Man OST compensates for that <3. Still, the episodes are great, and I recommend them to any SMBX fan.
P. S. The episodes go even better on TheXTech, because that's where I played The Great Empire II. I played The Great Empire on SMBX 1.3.0.2.