We got frustrated with the UI on Loggly and wound up moving to Logentries (https://logentries.com/).

I've not used Papertrail, so can't compare to them, but it's significantly easier to use than Loggly, they've been kind to us through the odd overage, and it does what we need it to do (Centralise a load of application logs and allow us to search over them and set alerts). The live tail feature is nice as well.

Also have had great experiences with Logentries. Easy to integrate on every platform/OS, very configurable alerts, team has been pleasant and responsive to pull requests.

I'm using Papertrail and the experience so far is not so great. Dashboard UI looks like it wasn't updated since 2005. Also, the free plan is a joke: 10Mb of logs per day. When I started I managed to stay under this quota, but recently I've added a couple features that spits additional log data. Now I have to either filter some valuable logs or become a paying customer (which I can't afford for such thing as logging).

Looking to migrate to https://logentries.com At least their free plan offers 5Gb/month.

Papertrail is pretty great. I've used them for years without a hiccup.

I also had a terrible experience with loggly. Been using logentries since with zero complaints

I have tried a bunch of them and settled with https://logentries.com

We used Papertrail for about 1 year. It works for fairly well for basic reporting, but it gets pretty expensive once you have enough volume. We moved to Logstash, Elasticsearch and Kibana. The power to aggregate, digest, and search the logs from various apps is quite awesome.