I strongly looked into using Lift for a recent web project, not being a big fan of Spring MVC. I have not used the latest versions, but the earlier versions of Spring MVC made you jump through a lot of hoops to get a web application running. I was almost sold on Lift until I saw that Lift can be very session dependent and would require 'sticky sessions' to work correctly. Excerpt from http://exploring.liftweb.net/master/index-9.html#sec:Session-Management
Until there is a standard session replication technology you can still
cluster you application using “sticky session”. This meas that all
requests pertaining to a HTTP session must be processed by the same
cluster node
So once a Session is required, the user would have to be pin to that node. This creates the need for intelligent load balancing and affects scaling, which prevented Lift from being a solution in my case. I ended up selecting http://www.playframework.org/ and have been very pleased. Play has been stable and reliable so far and very easy to work with.
