There's two types of GABA receptors, GABA-A which is where the "fun" GABA drugs act - benzos, barbs, etc. and GABA-B, where GHB, phenibut, and baclofen work. Alcohol works at both, I think. But they have separate effects, so saying a drug has "GABA type effects" is kind of vague.
I would save the baclofen for using them on their own. It can be tricky to get the dosing right and not everyone enjoys it. Baclofen is a much more potent analogue of phenibut, which people see to use because it's more widely available. While both do have intoxicating effects, if you overshoot the dose you can end up getting incredibly motion sick and having no fun at all, possibly even blacking out. Don't take a large dose (probably more than 80mg) all at once unless you want to be found unconcious, covered in vomit. Titrate your dose upwards, you have enough to do it.
Baclofen and phenibut are considered to be much less recreational, and have less abuse potential, than drugs like alcohol, GHB, and benzos.