The following is based on my own personal experience - your mileage may vary.

This is an excellent sexual position if you wish to maintain eye contact with your partner in an intimate embrace (especially if you stop from time to time and kiss them on the forehead or continue to passionately tongue kiss while you are doing it.)

I have found the best lubricant to use is sorbelene cream as it is the right consistency and cleans up easily.

An alternative position involves the woman on top where she can control the movement more easily and doesn't have to worry about being squashed when the man reaches orgasm and collapses (if you are prone to doing that.)

Note: If you are on the bottom you need to watch the angle of your penis as there is a danger of hitting yourself in the eye (goggles would be of assistance here if you can wear them without laughing too much.)