Observium vs. Cacti v2

Recently, I have setup an observium server for our office. After about two weeks of operation, here's what I think of them-

Observium

Pros:

• Has thousands of templates.
• Auto discovers which templates are applicable for a host
• Comparatively better interface

Cons:

• Comparatively more processor intensive.
• Does not work without DNS (/etc/hosts tuning is helpful)
• Adding users and controlling view can be tricky
• The bandwidth graph of cacti is better
• I could not find any "zoom" feature for the graphs

Cacti

Pros:

• Very good for bandwidth graphs.
• Very good for user portals and controlling user views.
• Easily customizable graph trees

Cons:

• No auto discovery feature
• Adding new templates can be tricky, very tricky.
• Needs 64 bit counters for bandwidth graphs over 100 Mbps. Learnt it the hard way.