X-Size program good or bad?

Hello, i am looking to change my training program
And i found the X size program on the internett.

Here it is :

X-size program.

Day 1: Heavy upper body
Day 2: Heavy legs
Day 3: Medium / light chest, shoulders and triceps
Day 4: Medium / light back, biceps and legs

Note: All reps should be performed alone without assistance from a partner.

Day 1, heavy torso. Have about 3-4 min break between each exercise and 2 min break if you are super for.

1) Bench press variation. 4 sets of 4-6 reps.
2) Pendleyrow, t-bar row or cable rowing. 4 sets of 6 reps
3) push press, shoulder press and seated shoulder presses all with a rod. 3 sets of 4-6 reps
4) pullups, chins or pulldowns. 4 sets of 4-6 reps
5) Narrow bench press or dips. 2 sets of 6 reps

Exercise 2 and 3, and 4 and 5 can be super by alternating between exercises until you have made all the sets. (Superset explained later)

Day 2 heavy bones. Have 3-4 min break between each exercise

1) Squats . 4 sets of 4-6 reps
2) deadlift or good morning. 3 sets of 6 reps
3) Backward outcomes increments up or Bulgarian outcome. 3 sets per leg with 6 reps
4) Hip Trust. 3 sets of 6 reps
5) Optional abdominal exercise. Here are my favorites.

Day 3 medium / light chest, shoulders and triceps. 1-3 min rest between sets. (Use the longest pause multiple joints exercises and shorter break of isolation exercises)

- Incline bench press, bench press or shoulder press. Topsett (Top Set is explained later)
- Flat weight bench, weight bench sloping floor or manual pressure. 3 sets of 8-10 reps
- Dumbell flies 3 sets of 12-15 reps.
- Sideraise 4 sets 10-12 reps
- French Press or JM press 3 sets of 8-10 reps
- Push Down drop set (drop sets is explained later)

Day 4 medium / light legs, back and biceps. 1-3 min rest between sets

- Deadlift. top set.
- Chins or Pull-down ceilings. 3 sets of 8-10 reps
- Bench Rowing or other rowing exercise with chest support. 4 sets 10-12 reps
- Face Pull or rear split flies. 3 sets. 12-15 reps
- Standing Barbel Biceps curl 3 sets of 8-10 reps
- Biceps isolation exercise. drop set
- Hack squat or leg press widowaker (explained later)

Is it good or bad?
 
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