Well going to the opera is always great, even if most of the time it falls short in some way. You are surely right to go to see Le Nozze di Figaro, one of the greatest of all operas, even if productions are often a bit twee. My second pick would be Don Carlos, which is very hard to cast - they will struggle - and which will also require good production and direction to keep it alive. I strongly suggest that you go and see it, it is a huge undertaking for them, and you can be certain that it will fall short by international standards, but it is the company's big venture of the season and I'd say you should be in the best seats supporting them, appreciating their guts, and hoping for some real magic and a triumph.