The 26-year-old's Queens Park Rangers exit was announced on Saturday.
And he feels the front man will be a 'great signing' for the South Coast club.
Ings made a good start to life at Liverpool earlier this season but tore his ACL and will no doubt he hoping for better luck where Austin is concerned at St Mary's.
For both Southampton and Austin, it seems a very sensible move indeed. As far as QPR are concerned, the logic of keeping Austin until January just to sell for less doesn't seem to add up at all.
It appears the player wanted to leave and QPR just had to sell - meaning the Saints were huge beneficiaries.
For Ings, meanwhile, the rehab process no doubt continues. Liverpool could do with him back - but will have to cope without him for the rest of the season, including against Manchester United on Sunday afternoon.
The Reds did well enough without the 23-year-old against Arsenal, only suffering at the other end when it came to their defending.