Asia’s beautiful, cheap, and less touristy destination. Compact, easy to get around, lots of fun and amazing places to explore.
Culturally and geographically, Vietnam is closest to Thailand. But still distinctly different in many ways and most certainly a unique and worthwhile place to visit. Many people do fall in love with the place and settle down here. It’s a small country with so many amazing and unique destinations. Many different types of terrain and landscapes. Rich in culture and authentic places where people don’t speak English yet. The way everyone gets around is by motorbike (and most likely so will you), leading to a very fun and adventurous experience.
People usually say November to March is the best time since it’s off-season and less busy, less hot. But I’d say avoid Dec to Jan as yes, it’s cooler and less hot…but it’s still cloudy and photos don’t look as nice. Also, the less touristy places feel kind of dead. I feel February or March is better. However late January is nice if you want to be there for Tet Festival (their new year’s). So perhaps late Jan to late Feb would be a good time range for first timers.
Vietnam can be done in 2 weeks to 4 weeks. 4 weeks is probably the ideal time for you to see all the different areas and visit major attractions. Vietnam is rich in diversity of terrain and culture.