Choosing the most high quality, reliable 3D printer
At work we have a Stratasys Polyjet.  It prints using UV cured gel; so, it is kind of a cross between FDM and SLA.  I have not used it personally, it is mostly used byt the ME group.  The parts I have seen that it produces are VERY good and it support different materials and even multiple materials.  They have a lot of different product levels so they can support different price points.  The only complaint I have heard is the material cost.

It can print some amazing stuff

Here is a nice video https://www.youtube.com/watch?v=HMMJnn_gHWw