We stayed here for 2 months in 2011-12. Tip O Texas has nice amenities and a friendly staff. What they don't tell you before you pay the NON REFUNDABLE rent is that the Pharr Events Center is about 20 feet from the park boundary. Events there go on till midnight (sometimes later) and the noise and reverberation will make your rig shake! The headaches last even longer. Staff claims to be "working on it", but the events center website shows no changes in the schedule. There are plenty of other nice places in the Rio Grand Valley that are quiet. Rate does not include electricity. Wi-Fi is available free at the clubhouse, otherwise for a fee from a 3rd party. We will not return to this park.
Sites are narrow and unshaded. Ours had dog-doo scattered about, which was (grumpily) removed after we complained. WiFi was intermittent. Staff lied to us about tour availability in order to steer us to their "preferred tour provider". The pool was nice. We would only stay here again for location close to the falls.