I would love to give Pura Vida 5 stars but taking some issues into consideration that people would likely find important definitely knock it down a bit. How much the rating should suffer would depend on your priorities. I would give it 3.5 if possible because despite the issues, I still eat here.
First I would like to say that the food is excellent. Chef Mayra does a wonderful job bringing a fully vegan menu with tons of flavor to Las Vegas. The price is hefty but not when considering the quality of ingredients, freshness, and LARGE portion size. I've had both breakfast and lunch here and neither disappoint.
This place has a wonderful concept of cruelty free dining but there are flaws in the execution. The menus (yes, you may be given as many as 4 different ones) are confusing and it takes the wait staff an excessively long time to explain everything. It also seems that Chef either cannot afford or does not allow anyone else to be doing cook/prep in the kitchen. Meaning that even though the place is tiny, if it is full (which is likely at meal times) you could easily wait an hour+ for your food. I have had smoothies and other drinks fail to be delivered because Chef was too busy. If you can't trust anyone else on your staff to make a coffee drink then you either are way too controlling or you need a new staff. ***Please watch a few episodes of Kitchen Nightmares and take the advise to heart!***
There is so much potential for greatness here. I think with some consultation on how to more efficiently run things, I would be more than happy to award Pura Vida the full 5 stars.