This was quite good – slightly above average for a high-standard series like TBBT.
I liked how Sheldon tried to convince Leonard and Penny to take him on the trip; some parts felt a bit repetitive, but most of it was quite ingenious and funny. The ending was hilarious, even if a bit predictable.
Overall the episode had solid laughs and kept the group dynamic entertaining. It's not one of the absolute best, but it's a fun watch that fits well in the season. Strong 8/10.