Wegreen is a very responsible and professional firm for your NIW immigration lawsuits. There are always multi-layers of checking your documents, materials, and petitions, which makes the probability margin of any errors significantly low! That's the best part of that. Additionally, they are experienced enough to have thoughtful opinions about how to proceed with your case. Although their general methodology is almost the same for most of the cases (as I've heard), they customize and optimize each petition based on the client's profile and need (number of recommendation, who should you get recommendations from, what to include and what to avoid in your petitions, etc). Despite their strong opinions on some matters, they would always consider yours, as well! Overall, I enjoyed working with them.